For the written pattern by Purpleiguana, check out the link below, and below that I have a second video showing how to alter this pattern into a more symmetrical crescent moon shape - ... ...
by Crochet by Ellej in English
by mommycraftsalot
by Beverly Tiemann
by Kerri's Crochet
by Tamara Kelly
by ArtbeadsVideos
by Guidecentral English