Redesign of a smart holder for bags to use as trash collection. Made to hold a plastic bag behind your printer suspended from a wire shelf. Works great on its own but even better if you also print a defection chute to direct the plastic poo straight down.

found that the bag stays open better if you pull the handle through the main hole, wrap around the side and then up through the side holes to loop around the raised bar. should be tight enough to keep the bag open.