Accessories in ABC Order
Lo=Lococation GB=Present PE=Person Gives it CH=Check or Search place EN=Enemy SH=Shop ()=Where it's at before repair
*=Can only Sell it

ATM Card: $0 Lo=You have it in the beginning of the game
Back Stage Pass: $0 Used to see the Runaway Five at Twonson Lo=PE
Bad Key Machine: $0 Used to open locked doors and lockers Lo=PE
Bag of Dragonite: $*1000 You turn into a dragon for one turn Lo=PE/GB
Bazooka: $*950 Used by Jeff, hits multiple enemies
Bicycle: $0 Let's One person ride Lo=PE
Big Bottle Rocket: $139 Used by Jeff, stronger then a bottle rocket Lo=GB/SH
Bomb: $149 Used to hit mutiple enemies Lo=GB/SH
Bottle Rocket: $29 Used by Jeff to attack in battle Lo=SH/GB
Brain Stone: $0 Keeps you from losing concentraction Lo=GB
Bubble Gum: $1 Used to get bubble monkey Lo=PE
Carrot Key: $0 Used to get into Pink Cloud Cave Lo=GB
Chick: $*25 Becomes a chicken after awhile Lo=From a Fresh Egg
Chicken: $*220 Used to rake in moo-lah Lo=From a Chick
Contact Lens: $0 Can be exchanged for a dirty pair of socks Lo=CH
Counter PSI Unit: $0 Makes enemies lose concentration Lo=(GB)Trash Can actually
Cup of LifeNoodles: $*178 Wakes up a unconsious person Lo=GB
Defense Shower: $0 Raises Defense of all allies Lo=(GB)
Defense Spray: $500 Raises one persons defense by 1
Diamond: $0 Used to pay off the Topolla Therter Lo=PE
Eraser-Eraser: $0 Erases the Iron Eraser Statue Lo=PE
Exit Mouse: $0 Takes you to the beginning of a maze Lo=PE
For Sale Sign: $0 A person comes to you and you can sell them something Lo=SH
Franklin Badge: $0 Deflects Thunder attack Lo=PE
Hand-Aid: $*19 User fully reovers HP Lo=PE
Hand Bag Strap: $*39 Freezes a enemy Lo=GB/EN
Hawk Eye: $0 Used to see in Deep Darkness Lo=CH
Heavy Bazooka: $0 Used by Jeff can be used multiple times Lo=(GB)
HP-Sucker: $*800 Used by Jeff takes HP from enemy and gives it to him Lo=(GB)
Hugry HP-Sucker: $0 Used by Jeff same as HP-Sucker expect from al enemies Lo=(GB)
Insectside Spary: $19 Use on insects Lo=SH/GB
Insignificant Item: $*2 Return to owner to get a Magic Truffle Lo=CH
Jar of Fly Honey: $0 Use against Belch to stop him from attacking Lo=CH
Key to the Cabin: $0 Use to save Paula Lo=EN, Carpainter
Key to the Locker: $0 It's kinda bent, key for lockers Lo=PE
Key to the Shack: $0 Used to enter Giant Step Cave Lo=PE
Key to the Tower: $0 Used go into Dungeon Man Lo=PE
King Banana: $0 Used to open up last trade door in Taluh Rama's Cave Lo=PE
Meteorite Piece: $0 Used to make the third Phase Disotorer Lo=CH
Meteornium: $*4000 Sell for alot of money Lo=EN
Meteotite: $*2000 Sell for moderate money Lo=EN
Monkey's Love: $0 Get from monkey you teach teleport Lo=PE
Multi Bottle Rocket: $2139 Used by Jeff for maximum damage Lo=SH/EN
Mummy Wrap: $*128 Used to freeze a enemy Lo=SH/GB
Neutralizer: $0 Used to reset all stats of every one expect HP and PP Lo=GB
Pencil-Eraser: $0 Used to erase pencil like statues Lo=PE
Piggy Nose: $300 Used to find Magic Truffles Lo=SH
Reciever Phone: $0 Can receive calls from Dad, AppleKid Lo=PE
Rust Promoter: $89 Use on mechanicle enemies Lo=SH/GB
Rust PromoterDX: $289 Same as above except stronger Lo=SH/GB
Shield Killer: $0 Used to destroy enemy shields Lo=(GB)
Shyness Book: $0 Use to treat the Tenda Tribe of there shyness Lo=CH
Signed Banana: $0 Used to get into the sewers of Fourside Lo=PE
Slime Generator: $*420 Used by Jeff to freeze enemies in battle Lo=(GB)
Snake: $220 Use to poison an enemy Lo=GB/SH
Sound Stone: $0 Used to record the eight melodies Lo=PE
Sudden Guts Pill: $500 Used to raise guts by a ton Lo=GB/SH
Super Plush Bear: $1198 Absorbs damage Lo=GB/SH
Teddy Bear: $178 Absorbs Damage Lo=GB/SH
Tendakraut: $0 Used to get into the UnderGround Village
Town Map: $0 Used to see a town Lo=PE
Wad of Bills: $0 Used to save Runaway Five in Twonson Lo=PE
Yogurt Dispenser: $0 Used to get to the 48th floor of the Monotoli Buliding Lo=PE
Zombie Paper: $0 Used to get to the Under Ground Road Lo=PE

Source Nintendo Power's EarthBound Player's Guide