Mike Krahulik once ran a game on stage at PAX where he unveiled envelopes which represented locked chests. He then told the group there was another set of envelopes, each of which cost $5 for any party member.
He effectively introduced paid loot boxes to tabletop gaming.
I don't know if it's the type you're looking for but I'm quite happy with my Genki Covert Dock. It does the job quite well, and the portability is nice to have.
I think it would be more fitting to replace "artist" with... Well, a number of options apply here.