That texture is borrowed from another mod and it's colored red ... if you suggest stuff like this again, you will be blocked from the comments section. Last warning.
Viewing post in Baldi's Basics The Ultra Decompile comments
I can't really find a suitable 3D model, so that's why it's a 2D sprite.
Also, saying that, check out the prototype design of the Reflex Hammer and say that again.