Another piece of your past is up for auction at shopgoodwill.com. The busy box, as pictured above, complete with original box is only $5. Also comes with a Jack in the box. As always, besides getting something cool, you get to help a worthy cause.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.