You could try Heat n Bond Ultra Hold by Thermoweb. It’s an iron on.
Here is the spiel:
“For the strongest “No-Sew” bond. Low temp. Use with fabric, foil,
lame, denium, felt, suede, leather, wood and cardboard. Machine
washable. Paper backed.”
They should have it at any Joann’s, or fabric store.
Bill, Deborah, Michele & Sarah
Reactive Metals Studio, Inc
928-634-3434, 800-876-3434, 928-634-6734fx