A while back I bought a set of ribbons from Amazon, but they came packaged on a piece of polysyrene. Once the ribbon was opened it ended up in a tangled mess that drove me mad, so I designed and printed a spool to hold it all. 

This is larger than your typical ribbon spool as each ribbon had a lot of it, this means its also usefull for storing small sets of string lights as well as many other things.

Print in whatever fillament you like, no supports needed, you just need a part A and a part B to create 1 spool, the 2 halves slot together but I recomend a bit of glue to secure permenantly.