3 Hand Painted Repro Vintage Mermaid Figures with Bubbles, 5 inches, one is broken, plaster, no hangers

Here are 3 plaster mermaids made from a vintage mold from the 1950s - 1960s. Each one is just under 5 inches. Pretty pale shades of yellow hair, pearl lavender bubbles and light seafoam tails. Pale lips and closed eyes.
The girls are flat on the back. They do not have anything on the back to hang them. Maybe they could be glued to something else. All are very nicely painted.
Two are in excellent condition the third has a broken tail with the end piece missing.
Again, there is no way to hang the mermaids.