if I put my light stand in my car trunk, the end can scratch the wall. I created a snap on cap that prevents this.

It prints without support. I used brim to encourage it not to fall over. should not be a problem to print on either end.

this same cap should work fine on the light stand variation that has a different ends. IF it is in warm car, and the version with the larger center dia. The cap snap might not work as well on the smaller diameter after that. Because it takes a set from the larger.