OK, first time at bat here and I want to thank everyone that has contributed because I've gotten a lot of great ideas here.
I needed something that I could store ice flies/jigs in for ice fishing this winter that wouldn't cause me a bunch of grief every time I needed one. Trying to dig these very small jigs out of a box with small compartments and small latches, while the wind is blowing, your fingers are freezing and the fish are biting can be very frustrating. This summer I had picked up some eye glass cases at a yard sale 5 for $1. One of them was deep and had a rubbery surface. It also snapped shut nicely and was very easy to get open. Then I remembered seeing fly box inserts at my local fly shop for under $4. I did a little measuring and figured out that I could use the large Ripple Refills that are 8 1/8" by 4 1/8". They also sell you a flat piece at the same time but I haven't found a use for that, yet. :-) So off we go.
I used an old file folder but any stiff piece of paper should work. I cut the board to fit snugly inside the case. It was nice that it fit both sides. I traced this onto the paper backing of the Ripple Inserts. I got the two I wanted easily and it cut nice and cleanly. I did adjust the template so that the ripples would be staggered on both sides. This ended up not mattering at all as there was a ton of room even with both sides filled.