That Scruggs is a work of art WW!! That white stuff the real deal??Unfortunately, you don't see many window buttsleeve cues these days. It really doesn't fit with the CNC method now. Back in the day, they used jigs to set up the pieces to do these kind of windows, Ernie, Bill, Dan, and Tim.
But, for your viewing pleasure, here are a few. And I recommend you look at Will Prout's JossWest Box Cues post on the cue gallery section, some incredible windows.
All the best,
WW