Here you find a list of all the Pokémon that have attachments when you catch them, what the items are and what the probability of getting one is:

Wild Pokémon
Pokémon Pic
Pokémon Name
Item Attached
% Chance
Butterfree SilverPowder 1.5%
Beedrill Poison Barb 1.5%
Fearow Sharp Beak 1.5%
Pikachu Berry 1.5%
Raichu Berry 1.5%
Clefairy MysteryBerry
Moon Stone
25%
1.5%
Clefable MysteryBerry
Moon Stone
25%
1.5%
Vulpix Ice Berry 26.5%
Ninetales Ice Berry 26.5%
Paras TinyMushroom
Big Mushroom
25%
1.5%
Parasect TinyMushroom
Big Mushroom
25%
1.5%
Growlithe Ice Berry 26.5%
Arcanine Ice Berry 26.5%
Poliwhirl King's Rock 1.5%
Poliwrath King's Rock 1.5%
Geodude Everstone 1.5%
Graveler Everstone 1.5%
Golem Everstone 1.5%
Slowpoke King's Rock 1.5%
Slowbro King's Rock 1.5%
Magnemite Metal Coat 1.5%
Magneton Metal Coat 1.5%
Farfetch'd Stick 1.5%
Dodrio Sharp Beak 1.5%
Grimer Nugget 1.5%
Muk Nugget 1.5%
Shellder Pearl
Big Pearl
25%
1.5%
Cloyster Pearl
Big Pearl
25%
1.5%
Cubone Thick Club 1.5%
Marowak Thick Club 1.5%
Chansey Lucky Egg 1.5%
Horsea Dragon Scale 1.5%
Seadra Dragon Scale 1.5%
Staryu Stardust
Star Piece
25%
1.5%
Starmie Stardust
Star Piece
25%
1.5%
Mr. Mime MysteryBerry 1.5%
Jynx Burnt Berry 26.5%
Magmar Ice Berry 26.5%
Snorlax Leftovers 26.5%
Dratini Dragon Scale 1.5%
Dragonair Dragon Scale 1.5%
Dragonite Dragon Scale 1.5%
Mewtwo Berserk Gene 1.5%
Mew Miracle Seed 1.5%
Sentret Berry 25%
Furret Berry
Gold Berry
25%
1.5%
Pichu Berry 1.5%
Cleffa MysteryBerry
Moon Stone
25%
1.5%
Politoed King's Rock 1.5%
Slowking King's Rock 1.5%
Misdreavus Spell Tag 1.5%
Steelix Metal Coat 1.5%
Shuckle Berry 26.5%
Sneasel Quick Claw 1.5%
Kingdra Dragon Scale 1.5%
Smoochum Burnt Berry 26.5%
Magby Ice Berry 26.5%
Miltank MooMoo Milk 26.5%
Blissey Lucky Egg 1.5%
Ho-oh Sacred Ash 26.5%
Celebi Miracle Seed 1.5%

 
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