Wifey Cap
It's a snap on cap to cover your canned beverage of choice. My fiancee has been asking me for weeks to come up with a solution. Here it is!
It's really just a cover that has little detents that clip on the lip of the can. Simple, and functional.
Print as shown in the pic.
I printed mine out of PLA. Tolerances are TIGHT!!! So, if you're printing out of something like ABS, you'll likely need to increase the size by a percent or two.
I make no statements about food safety, be a big boy/girl and make your own decisions there.