Got this in an email from the MN RollerGirls:
Join the Minnesota RollerGirls as we embark on a series of Knit for Charity events. We'll be knitting and crocheting chemo caps for cancer patients. All completed caps will be donated to local hospitals and the local branch of the American Cancer Society. The opportunity to knit/crochet with league-supplied yarn is for those who have some prior knitting/crocheting knowledge. Crafty Planet is generously providing their classroom space and we'd love for our crafty fans to join us in this good cause.
October 6th and November 3rd
More info on the RollerGirls site here.