A free vector set of Irish & Celtic Symbols, including a Irish Shamrock, a Celtic Triple Knot, a Celtic Cross, a Claddagh Ring, a ancient Celtic Spiral, and the famous Irish Harp. Files include Adobe .ai and .eps.
A selection of simple celtic knots. As requested, I've now added each of the knots separately - nicknamed according to their position in the thumbnail (top or bottom row and numbered 1-3 from left to right). Enjoy!