You added Portal Gun, TNT from Minecraft and lots and lots of CS-like weapons. Jeez.

If you want something representative, choose Soda Popper, Rainblower, Natascha, Sandwich, Syringe Gun, Ambassador, etc. There are many weapons which are known for non-TF2 players too, and these are some of them.

I don't understand why do you want to add only representative weapons tho.