Show your support for Bitcoin! Fits 2"x2" tail-hitch receivers. I've found a wrap or two of electrical tape around the end makes it fit nice and snug.Print the "orange" part in the color of your choice. I noticed that the orange PLA that I have matches the "Bitcoin Orange" color pretty nicely. I've uploaded both a square and circle version. I used 0.2mm layer heights, 10% infill and no support. Print the "white" part in white. I used 0.2mm layer heights, 10% infill and no support on this piece as well. Clean off any strings or bumps with a razor, add a drop or two of superglue per hole, and pop it in. I put a couple wraps of electrical tape around the end so it's a nice snug fit.