Thanks rcleav for posting that list. A lot of useful stuff.

I printed this, https://www.thingiverse.com/thing:604579, but it doesn't fit, it just falls off. I printed in ABS with a Raft, the print turned out ok. However it doesn't fit, it just drops off. I probably should have printed one to test instead of printing all 3 at once.
This one may work, https://www.thingiverse.com/thing:1340078, I have yet to print it out.