jt2k3
CAGiversary!
Don't know how much you guys wanna protect those GBAs, but KB Toys has the roll cage for .57 cents. I might pick one up just to see how well it works.
http://www.kbtoys.com/genProduct.html/PID/2412439/ctid/19/INstock/Y/D//ls/default
http://www.kbtoys.com/genProduct.html/PID/2412439/ctid/19/INstock/Y/D//ls/default