You have a real treasure trove of molas! I bought 2 when I visited the San Blas Islands a few years ago. I framed them to hang on my wall in AZ. There are many many things you can do with them after you get rid of the musty smell. Please don't wash them, as I think the colors will probably run, and they may not hold together very well.
What to do with them? In addition to quilts: pillows, totes, wearable art, wall hangings. ENJOY!!!