Dimpled Buckeye Nuts, Quarter Size or Larger 30 Nuts These dimpled buckeye nuts are quarter size and larger. The buckeye nut has a rich, mellow, warm-brown shell highlighted by a beige eye. These dimpled buckeye nuts are mostly flat with a concave indentation in the center. They are great for making necklaces and other jewelry and craft projects. Brutus Buckeye became The Ohio State University mascot in 1965.