This one has string on it - showing how they could be used for some purpose that involved them swinging or hanging. http://nms.scran.ac.uk/database/
record.php?usi=000-180-001-699-C&scache=3ucqwskull&searchdb=scran
Another question it makes me think of is - there was no Scotland and England in those days. Land bridges existed between Scotland and Ireland, and across Doggerland. So people came from various directions to settle here. So what was the difference between the peoples of what became Scotland and what became the rest of the UK that has made these items common here and not elsewhere? Are they common in the countries the people that settled Scotland came from?
NMS is showing some pretty intricate ones from Aberdeenshire.... knobby as opposed to covered in spirals and patterns though, yeah. http://nms.scran.ac.uk/database/
record.php?usi=000-180-001-411-C&scache=3ucqwskull&searchdb=scran