This is so cool! Anyone remember the Don Garlits signature tachs by Sun? They were in full Captain America trim in red, white, and blue. They’ve been going for big bucks on eBay for the past few years, and these days you can get old gauges restored (and upgraded so they don’t need an external transmitter) by companies such as Redline Gauge Works.
Another gauge guy on the scene is Brad Handshoe, who now sells reproduction decals for Sun Garlits tachs. Are you on a lower budget (duh)? He also has kits to take modern Mooneye half-sweep tachs and dress them up in the glorious colors. Check them out here.