I made an adaptor to fit the Flex Tail Gear tiny pump to fit on the Klymit matress pad. It only took 9 prints to get this final one. I also made an adaptor for the deflator, but it isn't really worth it, as the deflator stops after the mattress gets too deflated. I was able to do almost zero post processing on that one. I got the inner diameter of the print just perfect.

Edit: I forgot to post the link to the model https://thangs.com/designer/samuelt12/3d-model/FLEXTAILGEAR%2520to%2520Klymit%2520matress%2520pad-122109