If you are just saving them till a rip party anything will work short term. I actually collect artwork sets. I put them in a cardsaver and then in a plastic sleeve. After that I store them on horizntal edge in one of these.
https://www.amazon.com/gp/product/B005KBKSZQ/ref=ppx\_yo\_dt\_b\_search\_asin\_title?ie=UTF8&psc=1
clear plastic shoe boxes, added bonus you can actually see what's in them. There are many types and different lids, etc.
What about something like this?