Here's an alphabetical list of one-time use items available in SOCK2. Note that they aren't grouped according to rarity in any way.

Alarm Clock
removes sleep status
costs 35 gold
sold in mendley, Moonward

Antidote
removes poison status
costs 25 gold
sold in second week, third week, fourth week, fifth week, hillstad, garnam, wandering merchant, trigg, mendley, Zaile (for points), Moonward

Armor Protector
halves break% of armor for the next time user is attacked
costs 30 gold
sold in hillstad, mendley, Moonward

Black Mage's Star
Increases Black Mage level by 1
sold by Zaile for 200 points
dropped by Black Mage-Hater

Blue Mage's Medal
allows user to begin applying levels to the Blue Mage class
obtainable as 150-point benchmark

Bolsterer
permanently increases a weapon's power by 10%
sold by Zaile for 250 points

Defender's Star
increases Defender level by 1
sold by Zaile for 200 points
dropped by Defender Hater

Echo Herbs
removes silence status
costs 35 gold
sold in first week, second week, third week, fourth week, fifth week, garnam, wandering merchant, trigg, mendley, Zaile (for points)

Energizer
permanently increases unarmed attack by 2
sold by Zaile for 200 points

Eye Drops
removes blind status
costs 25 gold
sold in first week, second week, third week, fourth week, fifth week, hillstad

Exit Pass
allows instant departure from guild
costs 150 gold
sold by merchant monkey

Exp Doubler/Exp Tripler/Exp Quadrupler
increases all earned exp for the day when used
doubler obtainable as 200-point benchmark
tripler obtainable as 475- and 850-point benchmark

Fighter's Star
Increases your Fighter level by 1
sold by Zaile for 200 points
dropped by Fighterhater

Flex Herb
removes immobilize and disable status
costs 50 gold
sold by wandering merchant, trigg, mendley, Zaile (for points)

Gold Doubler/Gold Tripler/Gold Quadrupler
increases all earned gold for the day when used
doubler obtainable as 200-point benchmark
tripler obtainable as 550- and 850-point benchmark
quadrupler obtainable as 1500-point benchmark

Gold Needle
removes stone and paralyze status
costs 75 gold
sold in trigg, mendley, Zaile (for points), Moonward

Guild Cannon
causes damage to target. or whatever.

Guild Permit
allows creation of guild
obtainable as 150-point benchmark
dropped by bardinal

Healing Herbs
bestows 25-40 points
costs 40 gold
sold in garnam, wandering merchant, trigg, mendley, Moonward

Holy Water
removes curse and haunt status
costs 75 gold
sold in garnam, wandering merchant, trigg, mendley, Zaile (for points)
dropped by ghost pig

Iron Safe
eliminates gold penalty if owner is KO'd
costs 1000 gold
sold by merchant monkey
obtainable as 925-point benchmark

Key to Victory
allows user to enter the area "beyond the door" when used with the magic words
not a one-time use item
dropped by Mazell

Legend Candy
levels-up another item or piece of equipment to maximum potential when used
dropped by Hellspawn

Level-Up Star
bestows exactly enough exp to reach next level
costs 250 gold (Merchant Monkey)
costs 500 gold (elsewhere)
sold by merchant monkey, messenger
obtainable as 150- and 925-point benchmark
bestowed as 25- and 35-kill guild benchmarks

Merchant's Medal
allows user to begin applying levels to the Merchant class
dropped upon defeat of Merchant Monkey

Metronome
removes slow status
costs 35 gold
sold in third week, fourth week, fifth week, trigg, mendley

Motes
Motes are items that have the effect of a specific spell in the game. Theoretically any spell can be transformed into a Mote using the Summoner ability Motecraft, but the motes listed below have either been sold, used, or existed in someone's inventory. For a description of the use of each Mote, please refer to the abilities page.

Aero Mote (40 gold, sold in mendley)
Assist Mote (400 gold, sold in Adumon)
Blizzard Mote (25 gold, sold in garnam, mendley, Adumon)
Blizzara Mote (90 gold, sold in Adumon)
Blizzaga Mote (createable with summoner skill, motecraft)
Bio Mote (createable with summoner skill, motecraft)
Cure Mote (30 gold, sold at Melfort)
Decoy Mote (50 gold, sold at Melfort)
Disable Mote (120 points, sold by Zaile)
Drain Mote (createable with summoner skill, motecraft)
Enblizzard Mote (75 gold, sold in Adumon)
Enfire Mote (70 gold, sold in Adumon)
Fire Mote (20 gold, sold in garnam, mendley, Adumon)
Fira Mote (80 gold, sold in Adumon)
Firaga Mote (createable with summoner skill, motecraft)
Focus Mote (120 points, sold by Zaile)
Imbue Mote (150 gold, sold at Melfort)
Immobilize Mote (120 points, sold by Zaile)
Libra Mote (20 gold, sold at Melfort; drop from ???)
Might Mote (120 points, sold by Zaile; drop from ???)
NulFrost Mote (80 gold, sold in mendley)
NulFire Mote (80 gold, sold in mendley)
NulShock Mote (80 gold, sold in mendley)
Poison Mote (50 gold, sold in mendley)
Protect Mote (100 gold, sold in mendley; 100 points, sold by Zaile)
Protectga Mote (drop from Bot v3.0)
Quake Mote (drop from Rock Bot)
Quick Mote (drop from ???)
Ray Mote (80 points, sold by Zaile)
Reverse Mote (150 gold, sold at Melfort)
Shell Mote (120 gold, sold in mendley)
Thunder Mote (30 gold, sold in garnam, mendley)
Thundara Mote (createable with summoner skill, motecraft)
Thundaga Mote (createable with summoner skill, motecraft)
Umber Mote (120 points, sold by Zaile)
Water Mote (createable with summoner skill, motecraft)


Point Doubler/Point Tripler/Point Quadrupler
increases all earned points for the day when used
doubler obtainable as 50- and 200-point benchmark
tripler obtainable as 625- and 850-point benchmark

Rare Candy
levels-up another item or piece of equipment when used
costs 250 gold
sold by merchant monkey
sold by Zaile for 250 points
bestowed as 25-kill guild benchmark

Remedy
removes all negative status
costs 150 gold
sold by Zaile for 150 points

Sage's Star
increases Sage level by 1
obtained as "something inspiring" upon being kicked out from beyond the door

Scholar's Badge
allows user to begin applying levels to the Scholar class
dropped by quiz wiz

Shuriken
inflicts 2-3 times unarmed attack power of damage (ignoring defenses) when thrown
costs 75 gold
sold in trigg, mendley

Smelling Salts
removes confusion status
costs 25 gold
sold in first week, second week, third week, fourth week, hillstad, garnam, mendley, Zaile (for points)
dropped by songbird, Moonward

Sneak Glove
steals random item from target with 75% probability
costs 100 gold
sold by merchant monkey
given away by imp
obtainable as 250- and 400-point benchmarks

Soothe Lotion
removes burn or freeze status
costs 40 gold
sold by wandering merchant

Soul Locket
eliminates exp penalty if owner is KO'd
obtainable as 925-point benchmark

Strong Medicine
bestows 75-100 points
costs 75 gold
sold in Moonward

Summoner's Medal
allows user to begin applying levels to the Summoner class
dropped by Vacuumare

Summoner's Star
increases Summoner level by 1
dropped by Conjurer

Super Sneak Glove
steals user's choice of a random item, equipped weapon, or equipped armor from target with 75% probability
obtainable as 700-point benchmark

Thief's Medal
allows user to begin applying levels to the Thief class
costs 500 gold
sold by merchant monkey
obtainable as 350-point benchmark

Tomes
Tomes are deciphered by Scholars of a certain level. More information is available on the Scholar class page.

Tome of Pride (400 gold, sold in Mendley)
-Readable by Lvl 4 Scholars
-Provides a bestiary of previously faced monsters (Must retain tome to update the bestiary)
-Scholar deals double damage to previously faced monsters
-Scholar receives double XP from previously faced monsters

Tome of Endurance (500 gold, sold in Moonward)
Tome of Valiant Strength (500 gold, sold in Moonward)
Tome of Vocations (400 gold, sold in Mendley. also obtainable as 775-point Benchmark)

Vaccine
removes virus status
costs 75 gold
sold in mendley, Zaile (for points)

Wait Mode
freezes competition in time for user's choice of between 1 and 3 days
costs 150 gold (based on selling price; most likely unavailable for sale ever)
obtainable as 125-point benchmark

Warp Stone
change user's points with those of another player, chosen at random
obtainable as 250-point benchmark

Weapon Protector
halves weapon's break% for next attack
costs 30 gold
sold in hillstad, mendley, Moonward

White Mage's Star
increases White Mage level by 1
sold by Zaile for 200 points