Can holder

Lets you stack up to 5 cans with 8.5cm diameter. There's about 1mm clearance around the can and there are 6 holes for screws with 3mm diameter so you can screw it into cabinet doors.

I'm planning on using mine for cat food.

Sides have a hexagonal pattern to save filament.. but they make printing time long.

Bottom has a kite-and-dart Penrose tile pattern because I'm a math nerd. Painstakingly created from scratch so the distances between individual cutouts aren't uniform. Don't judge.

The initial model was taller to accommodate more cans, but my MINI couldn't print the height, so you get a 5 can holder. 

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After a time using it, I can say it works really well, just make sure that the cans don't hit the bottom hard when you're loading them in. The bottom of the model fell out after a particularly forceful can drop and we had to reattach it with epoxy glue and fishing line for reinforcement.