Sam,
15" x 10" would be a very tall Oklahoma....might push Kansas into Minnesota!
JDS has an OK-shaped plaque on page 79 of their current catalog. It's their part number STOK431, and it measures 5.5" x 11".
If that's too small, you might check with Claytex (I just bought a bunch of Texas-shaped plaques from them) and Big Sky Woodcrafters.
Cody |