Just a few things I did with My TSPP recently. I didn't like the way the Stern Flipper Button Covers took up so much of the artwork so I made some oval protectors from 1/8" black plastic. Thought the oval shape added a bit of interest instead of just being there to hide wear.
Probably not much to talk about - but I also got the Mr. Burns figure, cut him in half and used a metal dowel to secure him down into the existing screw hole that holds the plastic. Put a fat stack of cash in his hands (secured with GOOP). Thought it would be pretty neat to make him oversee his factory.