Here is a cheap student cello. It has plywood ribs with a very thin maple veneer. Somehow they punched a large hole in the rib and the plywood was fractured and broken. This cello was not worth taking apart and fixing the rib using a couple of molds. So I thought about it and figured I could make an outside mold and an inside mold and pull the two molds together tight enough to sandwich the plywood back together. Here are some photos. Oops, I can't seem to find the final photo but in the end it looked better than a big hole in the rib. ;-)

IMG 20241211 124308 711	IMG 20241212 115044 657	IMG 20241212 170659 642
IMG 20241212 174248 051	IMG 20241212 180827 722	IMG 20241212 180839 470
IMG 20241212 180853 521	IMG 20241212 180919 957	IMG 20241213 125032 467
IMG 20241213 125947 256	IMG 20241213 130103 618	IMG 20241213 134319 255
IMG 20241216 091418 602	IMG 20241223 091514 310	IMG 20241223 091551 778