I have a Joe's Racing caster/camber gauge. The avatar has Weld ProStar wheels. All I have to do is remove the center caps then the dust caps and the gauge magnetically attaches to the hub without issue.
For turning plates, this hack uses heavy, thick garbage bags folded over multiple times. Plastic on plastic on plastic on plastic really is quite low friction! Turned the avatar into a car that could not be safely driven down the track to one that leaves and goes dead straight.