Wonderful suggestions for you, Allison. I am sorry for the breakage, but there are opportunities to make some neat things with the remnants.The other thing you might do is check with someone about having them set in a ceramic tile which could be mounted on the wall. I don't have a kiln at home, but it is something I would try if I did; NOT with your pieces, but just as an art project. I am sure it can be done, though.
I think your mom will understand.
luvyakat