Lots of free colouring resources - geometric, Celtic knots, all sorts. Some simple ones for smalls, and more complex ones too.
scottish cross | Celtic Cross Royalty Free Stock Images - Image: 9853579
imaginesque.blogspot.com, December 2012
Custom Made Carved Celtic Crosses
Celtic crosses, Dublin, Ireland
imaginesque free blackwork embroidery patterns
Stain glass, gem stones, beads, tile and coral. By artist Kay McInnes at www.facebook.com/tinypiecesmakeart