I think this
is the only one so far.
But FWI there is very little "room" in which to mod a crystal without having to make completely new pieces; it's the same reason a hexaminx (cubical megaminx -> hexaminx by Tony Fisher) took so long to make, despite many attempts. If you try to mod a megaminx "out" to far, you run into the edge pieces of a pyraminx crystal and that just causes problems....
If you mod "out" to far on a pyraminx crystal you run into the new pieces that are on this puzzle
(the ones near the center of each face).
Mod that puzzle out too far and you run into the corners of this puzzle
Modding off of that last one however should work no matter what - too bad no one has ever built it (hintity-hint-hint