I thought I would share this with everyone. I was thinking about a way to display some of my fossils in a manner that all different views were possible with multiple fossils. I did not want to do it with the expense of riker mounts. Also, riker mounts would not be deep enough to put an echinoid in profile view. Then I thought about what people use for displaying sports memorabilia. Baseball cubes, maybe. Football and basketball cases, too big. So what about hockey puck holders? So I went on Amazon and found 2 hockey puck holders for about 5 bucks. They are 3 by 3 by 1 1/4. I bought them. Then I bought a pack of poly foam from Hobby Lobby, 1 inch thick. I trimmed a piece of foam to fit into one of the holders. In it I put 3 echinoid, Eurhodia rugosa ideali. Showing top, bottom and side profile. Bingo. Works great. I can order a dozen of these for $12.97 including shipping and the foam was $3.80 for two 12 by 12 pieces which will make 32 pieces for the cases. So for $16.77 I get 12 cases. You cannot buy 12 riker mounts for that price. This will work for smaller echinoids, shark teeth, shells, ammonites, and many other items.
This is the end result.