One thing I like to see is a prop that actually does something. It can be as simple as putting a make up mirror on it, or a fan to cool you off.
What I really like though is to make flames shoot out of something.
I thought I’d take a design for a flame poofer, and adapt it to a rifle.
I spent time talking to my friends at the hardware store and they pointed me to the right parts I needed to do this. This is the result after it was pressure tested.
