Redneck engineered/fabber cobbled this in the work shop. Poured the sand out of the plastic bag it came in, got an extra reusable shopping bag, a funnel that the end fits into the feed tube for my sand blaster. I cut the funnel down so it was just the tip and an inch or so of the bowl. Then i cut a hole in the bottom of both bags. Put the plastic bag inside the shopping bag. Put the funnel through the holes. A little duck tape and a hose clamp keeps the sand pouring into the gun. Just have to hold the gun upside-down. Massive improvement.