Hi, I'm panducakep.
I got dificulty on adding custom body sprite in an item when they're used. When I was experimenting using the sprite of XMAS and Wedding on an equiped items, they worked. Probably, it already exist in const.txt. My another experiment was replacing the GM Sprite with custom body sprite and succeded because of it just need to rename the sprite.
I got really stuck on it, Can somebody help my probelms? A big thanks and appreciation to them who can solve my problem.