The way I've seen it done, the smorgasbord of noteheads that MuseScore has used for percussion isn't used in music literature the way MuseScore uses them. Things like triangles, or x-circles, or any of those wacky shapes, are rarely seen, and if they are, it's in an auxiliary part for a concert band piece written by a composer who is not a percussionist. 98% of the time, instruments are just differentiated by line (concert bass on bottom space of staff, crash cymbals below that, snare on second space, etc), with staff text dictating the instrument the first time it's included in the piece.
As far as what IS actually a different looking note, we have the concept of marching buzzes. Right now MuseScore is using the the diamond shaped notehead for marching buzzes- EVERY piece for marching I've ever seen uses a regular notehead with a z across the stem to notate a buzz. Right now all MuseScore stems are the same, so I don't know exactly how they'd implement this, but if it could be implemented the same way we drummers use the single tremolo mark as a diddle, that would be perfect.
This is a super simple concept, but I feel like, if implemented, it would ease a lot of peoples' minds by just being much more familiar.