This thing is for a fairly small audience: people who pack their own coffee into Coffee Duck brand reusable cups for original style Nespresso pod machines. Probably you already know if you are one of these people. No one else is likely to have a use for this rather specific design. The Coffee Duck cups are the black pieces in one of the pictures. The Coffee Duck cups are available in a 3-pack, so I designed this thing to hold them all at once. I've included a thingverse source reference to a post that has some useful tools that can be used with this holder. I expect to design and post a tamper/scraper for these soon.This is a single-piece design, so there's nothing to do but deburr this and start packing!