http://www.containerstore.com/shop/storage/smartStore?productId=10037002&N=81664
I have found several boxes that will work for storing Silver Strikes in the old sized cases and in the new, larger clamshell cases.
Each Medium Storage Insert holds 50, just like the chip holders for the casino, but is not divided. Comes in colors to allow differentiating casinos and packs into the Small Smart Storage System for easy transport.
The other item is the Small Smart Storage System which has a latching cover and holds 3 of the Medium Smart Storage

I have not ties to this company. I have just been searching for storage for my strikes and feel that I have finally found the right sized containers.

Happy Strikin'
Peggy