I have 2 boxes of Kwik security cases for single CDs up for grabs.  Not sure how many are in each box, a few dozen at least.  Image attached, they use a magnetic key to unlock.  If you would like a box, please reply to me with your RIDES code, I'll send them your way. 

Donald Priest
Director
Southgate Veterans Memorial Library
14680 Dix-Toledo Rd.
Southgate MI 48195
734-258-3002