You guys
know I like to tinker and fabricate. (NO, not prevaricate, FABRICATE!)
Track of the Wolf sells a neat spout for GOEX cans, and the price isn't too bad. BUT - shipping adds another $5+ to the cost.
As an alternative, you can drill the back out of a .32 pistol cartridge case (the ones in the picture are .32 H&R Mag) with a 17/64" drill bit, and drill a hole in the can top with a 11/32" drill bit. Then push the cartridge into the hole from inside the cap and either epoxy or solder it in place. Works just fine.
OH! That little green cap is a twenty-five cent vinyl "thread protector" from ACE Hardware. It fits like
Sabotloader's perfect sabots -
just right .