Mini paint roller end caps

I needed to replace a lost endcap on a mini paint roller.  Nothing fancy, but it's been perfectly functional.  Sure I could buy another roller handle for $3, but where's the fun in that?

PETG gives just the right amount of flex to insert into the roller cover, and for the roller handle barb to grip correctly.

I like to paint on supports for the center hub to keep it smooth.  Technically it would be better to print face up, but that would waste more material as supports and the benefit would be negligible.