P-tab cup

Several years ago I remember coming across this rubber cup online that you could put over the P-tab on a massager. Many guys had said it too an edge off the pressure on their perineum while added extra sensation & pleasure. Feels like something one should find easily on Etsy, but no luck.

I ask this b/c I’m finding my MGX’s p-tab to be uncomfortable after a bit, and need something to either stick less or spread the sensation out over a larger area. Either way, I appreciate any help in finding this. FYI, it’s could also be construed as a bit of a toy, being a 1/2 hollow-sphere/ball that when turned inside out would do this weird pop & flip thing.