If you want to play Pokemon Gold/Silver as a slug-mutant (https://www.weasyl.com/submission/590283/slugma-trance) or a Clefairy wearing a hat, these are the sprites for you.
I'll use the Clefairy one to replace the bicycle.
EDIT: added lapras with hair
Link
baah
tempting to know how to hack Pokémon Gold/Silver just to put these sprites on the game