Maybe some clear silicone to hold them in place?I'll be fabbing up a few 1-1/2 pvc pieces sanded smooth and painted to match.
That doesnt look like a PVC pipe. What did you use? And how are they kept on?
Nice McGyver! Did you add these before or after mounting the wheels?1-1/2 pvc plug and pipe painted argent. Friction fit with a few wraps of electrical tape to make the gap between pvc and hub ID.