challagan

I cut some stock awhile back for some small boxes and forgot about them. Tonight I mitered all the corners and ran the grooves for the bottoms and lid panels. These would be small ring boxes about 3 x 5 x 2 1/2 high. They will have about 2 inch x 4 1/4 inches of space inside.

What I need ideas for is how to make a the interior into a fabric covered ring holder. I want to have 1 slot down the middle of the length of the box, covered in velvetine and you push the ring into the crack. Any ideas on what to use and how to finish out the interior. Some kind of foam I expect would work well but don't know where to get it or what to use.

Thanks ....

Corey