Yikes - what have I done?

A few days ago Amelia's teacher asked me if I would like to be the costume co-ordinator for the infant school Shakespeare production... the Lower First classes are doing The Tempest. I have no idea what is involved or what I have got myself in to but I said yes! If all I manage to do is getting my sew-jo back I will be happy, great costumes will be a bonus or should that be the other way around?!!