Celtic Spirals Tunic, Cloak or Cape Clasp Size: 2  across Celtic Spirals Tunic Clasp. Cloak clasp is attached to garments using a machine button stitch or hand sewn on with a button stitch. These clasps are designed tp be both sturdy and light weight. Solid nickel hardened pewter. Excellent for a Renaissance, Anglo Saxon, Norman or Medieval Impression. Excellent for a period look for Renaissance, Victorian, Gothic or Edwardian as well as most other periods and modern interpretations.