Millions of people sell goods on Amazon just like on Ebay. If you feel cautious about it you can simply open a business checking account. Banks are quite used to clients depositing MO's, deposits coming from Amazon or PayPal and such due to so many having small ebay/Amazon/craigslist businesses. It's more common than you realize and MO's have been used as a safer way to pay sellers. Most small ebayers/Amazon sellers don't accept personal checks, but they accept MOs.