I needed a couple display pieces to hold some CD cases for a show the wife and I will be selling some retro stuff at. So I made the following design real quick for a simple little 3d print that would hold the CD cases at a nice little angle.

It works with the tri fold cases like in the picture, and plastic jewel cases. 

It is a quick print and fits the bill for what we need. If you wanted you could use double sided tape to stick the mount to the table, but I don't feel it is needed.