H TOKYO specializes in handkerchiefs.  (They are large — bandana sized— so they can be used as neckerchiefs as well as pocket squares.) Made from the highest-quality cotton shirting fabrics, these wearable pieces of art are silk-screen printed with designs by fine artists and illustrators, and hand finished by Japanese craftsmen. They are so beautiful, they are suitable for framing.

"Planets" handkerchief, by Hana Akiyama.  20 1/2 inches square