My son wanted to be something fun for Halloween and he always wants something homemade so we came up with a flyswatter costume where his face was the squished fly. I used white foam core board and cut it in the shape of a flyswatter, cut a hole through the middle and used silver tape to make the mesh of the swatter.
I then glued fly wings (kept from a past bee costume) and some black pipe cleaner legs around the hole. My son wore a black hood (again from the past bee costume) which already had antenna on it but added two half Styrofoam ball shapes with gold sequins for eyes. He wore all black and we added just a touch of fake blood on the swatter. The reactions we got were great!! And it was so easy to wear and take off if he wanted to. A hit for sure!!