Then there's these that Sean Scott cooked up last year. I took the picture at the PBN/CPX Meet & Greet. Electronic, scores to a laptop, LED lights that change from white (neutral) to red or blue depending on which side pushes the slider. Very cool. I don't know if they every fully finished them, but I think they had some pretty big plans with them. Probably have to reach out to Ryan at CPX now for more details.