Items with world-specific textures cannot be properly drawn on a mini sign.

These following items cannot be properly drawn on a mini sign:
- SW Butterfly Wings
- SW Butterflies
- SW Cut Grass
- SW Grass Tufts
- SW Logs
- HAM Logs
- HAM Fish
- HAM Cooked Fish
- HAM Snakeskin
- HAM Snakeskin Hat
- HAM Snakeskin Jacket
- HAM Snakeskin Sail
These items are technically the same as other items already in the game, but with different textures in these worlds. For example, butterflies and their wings are red in Survival, but blue in SW. For whatever reason, these different textures cannot be drawn on a mini sign. Instead, the mini sign will show the "original" textures of that item, which I think is whichever one was added to the game first (in the case of butterfly wings, this is the red textures).