Happy Gadgets Aunt Martha's Hot Iron Embroidery Aunt Martha hot iron transfers #3929 Happy Gadgets. Use for embroidery, fabric painting, wearable art, needlepoint and other crafts. This would make really cute dish towels, aprons, hand towels, hot pads, pot holders, pillows or quilt. The set contains classic animated days-of-the-week motifs reminiscent of the 1950's - very vintage style.