Travato propane tank fill port cover

I've been wanting to make one of these for some time now - I got tired of the flimsy propane tank fill port covers. Sure you can buy another one for a lot less, but it will just break again when the person filling your tank puts it back on the port... This one is much more substantial and should hold up a lot better... printed with TPU in random colors. (want a specific color? send a message)