Postal money order?

I send money orders in US funds, safe and secure, cash the money order send the parts. In some state if the seller tries to screw the guy who sent the money order that constitutes mail fraud.

While it does constitute mail fraud, often little or nothing is done as most times the amount of money involved is not considered worth their time and effort.....case in point, decades ago I tried to buy a a set of Hughes ported iron heads; this was on a different site; sent USPS MO $850.00, the guys name was Erick Spears, lived in Maryland. Never got the heads. Tried to get Post Office involved thinking "hey this is mail fraud" they didn't think amount involved was all that significant.....