My vote goes to the Colossus sniper rifle. It doesn't have to fold up like the original - just make it one solid piece if need be, or try for a sliding/compressing barrel if you want to be fancy. You guys are doing great work on the FP Colossus guns, so might as well continue on a winner. And of course red hooves for Bovis. After that, I'd suggest FansProject Deluxe Insecticon guns, in colours to match Stormbomb/Thundershred/Backfiery.