CROCHET PATTERN - Be Mine - a linked heart hat in 8 sizes (Infant - Adult L) - Instant PDF Download on Etsy, $6.18 AUD
Amazing Knits Mettiamoci Una Pezza! Una città ai ferri corti Urban Knitting a L'Aquila, 6 aprile 2012 mettiamociunapezza.wordpress.com/
'Little Leprechaun' This doesn't link to a free pattern, but you could make this from any hat pattern. Alternate green and black, crochet the buckle separately and sew it in with matching yarn. I'm making the top part without the flaps or braids, because I worry about strangling hazards for little ones.