| Crew mates created a mace from a boat's oar, complete with silver mount decorated with Royal Marines cap badges and decorative knotwork and braiding. |
| Renditions of the heron are common in Celtic art, ranging from simple terminal figures to complex intertwined knotwork. |
| It is beautifully illustrated with colorful Celtic knotwork from the Lindisfarne Gospels. |
| Interlace can vary from simple two-strand twists used as linear borders to three or four-strand bands which can form roundels, knotwork, or squares, or fill entire panels. |
| One noticeable change is a movement away from embroidery based in Celtic zoomorphics and interlacing knotwork toward more geometric, abstract designs. |
| They were often carved with delicate patterns of interlaced knotwork and the heads of fabulous beasts. |
