Spell something truly A-M-A-Z-I-N-G with Cooper Hewitt Design Patterns Wooden Magnetic Uppercase Letters from Mudpuppy. A fun and educational collaboration between Cooper Hewitt, Smithsonian Design Museum and Mudpuppy, this set includes 40 wooden letters featuring beautiful patterns from the museum’s collection. Packaged in a unique milk carton box, these sturdy and durable letters are perfect for decorating any magnetic surface.