Groovy news! The Butzbo design looks like pretty nice. Wouldn't mind some more alternate variants of the classic logo though, it feels a bit square, especially now that the square is highlighted (was that border really there before?). The sketchbook tour shirts were just perfect IMO (though even better without that 'Sketchbook Tour' part)
http://www.newgrounds.com/store/product/sketchbook-tour-2008
http://www.newgrounds.com/store/product/sketchbook-tour-shirt
And there was that one other one with the really buff tank. Hard to find links without that old overview...