I have a Chinese New Year lesson that my kiddo's love to make every year with sponge stamps. The old stamps that I have had are worn out. I ordered a cardboard stamp product from
School Specialty called Miracle Sponge to reuse the handle part of the stamp.
It is thin like cardboard. I drew on it and cut it out dry. I then picked off the old sponge on the plastic stamps that I had. I hot glued the dry cardboard sponge to it.
After the glue was dry, it ran the sponge under my little cold water only sink, yes, and poof the sponge expanded.
They have lasted through many cold water washes. Yes, my fingers are cracking....
But the quality of the material with tempera paint was worth it.