While I'm mostly a knitter, I do like to crochet simple things. Mostly, I like using happy colors but cotton yarn, which is what seems to work best in crochet, is difficult to come by in the USA in lots of pretty colors. The Europeans and Australians seem to have endless pretty colors to use, but not so here.
It seems that Mo of Crochet Objet in Tel Aviv, felt the same way, so she developed her own line of yarns especially for use in granny squares. She calls them Granny Kit.
I'm looking forward to trying them out, as the shipping is reasonable and the colors incredible!