Looks like a great assortment of "fun size" cannon!
My first shot, I tried the green fused cracker (fuse end in the front, folded back along the length of the cracker), which shot the furthest - probably 40-50 ft. No detonation. (Don't worry about it - it was subsequently destroyed by another member of the explosives team!)
The second shot (grey fuse end toward breech, folded forward) detonated in flight about 6 ft out of the barrel.
The third shot (same configuration as the second) went a solid 25-30 ft before detonating, and was the best overall shot of the night.