If you're nervous about generic money orders just ask for a USPS money order.
They will cash that at the PO - don't even have to go through a bank so it can't bounce or anything if it's fake (if that's what worries you) - cash it, pocket your cash, and send the item all at the same time.
Want to save 5-15% on your purchase? Check my feedback and pay via Check/MO/Cash
Resolution for 2015 - How about we make some trades instead of just buying and selling?