The basic idea is a pedal in the xxx9 series that makes my guitar sound like various bells or percussive instruments.
Some examples would be the bells in Little Wing, or 1983 by Hendrix, or Pink Floyd, or soul music, or some Lionel Hampton vibes in the middle of a jazzy number.

In my mind, there would be these 9 sounds:
1) Vibes 1
2) Vibes 2
3) Xylophone
4) High Bells
5) Medium Bells
6) Low Bells / Gongs
7) Chimes / Bars (mallets)
8) Glockenspiel
9) Orchestral Bells

Maybe a pseudo ride cymbal could be shoehorned in there some where.

Overall controls could include muted, ringing (sustained), modulation (which may include pitch – a series of rising, or dropping bell tones). I think it could be useful and I would line up to buy it if made…
MEG