You bet! It’s up there with an .stl now too although I haven’t printed it from an STL, just the 3mf which should give better results on the curves tbh. If your slicer can handle the 3mf version then that’s what I would recommend.
If you’re planning to mod it using the stl then disregard, but send me what you make!
a piece of climbing rope looped above the top and a few turns of duct tape works just fine as a “handle” and takes all the wear off the cap strap. it adds as a place to clip a 'biner to, and if you ever come in need a piece of duct tape - there it is.
I legitimately would take a moment and think about commercial applications. I think you have a product that you possibly could market and sell. Don’t know how this begins but I think you want to go. Probably speak with a lawyer perhaps