vintage set of ceramic mermaid family with bubbles wall decor damage

This lovely lot has some wear. There is some dark crazing, to me it makes it look like fish scales on 2 of the pieces. Also the smallest mermaid has her hair bun broken off, it could be painted, just looks like a pixie cut. The backs of all 2 have some thick glue residue, maybe could be glued on cork or some type of fabric. I am not sure if these could be repainted, but still a fun set to display. The largest one is about 8 1/2" x 3 1/2" x 1" and the smallest is about 4 1/2" x 3" x 1". This is shipped from a smoke free home. Thanks for looking!