pocket cannon GB?

I came across these. I've been wanting one for a while. Would anybody want to run a GB? It looks like the normal price is 49.95. They are on sale for 39.95. If you buy 12 or more, you can get them for 29.95. Shipping could probably be done for ~$5 in the US bringing the price to around $35.

.30 Caliber Mini Cannon - Pocket Cannons