I help organize fundraising events at Comic Fusion in Flemington, NJ. I appear in costumes for these events and would to have some nice pictures done. You don't have to be professional just someone who knows how to take a decent shot. I bring my own camera and we have one for the shop (both are point & shoot). We can't pay for this but do provide lunch to anyone volunteering.
Charities that have benefitted from our events: S.A.F.E in Hunterdon (local family services shelter) and Comic Book Legal Defense Fund.