TPU is a little too rigid for that kind of use, it would not be comfortable.

You’d ideally want to print a mold and then use silicone to fill it in and use the silicone as what you “interface” with.

But you definitely could use tpu for the shell that holds the silicone interior.

Oof, that’s a bad day. Hope the cleanup wasn’t terrible.

Had this happen as well with the GR86 trunk handle file that’s on there as well. I made a make, tried to mark it as such, but was given the same error. Like with your case, the creator doesn’t have an option for purchase/support.