How do/would you guys send a small amount of ammo?

Small meaning like several 20 round boxes.

I recently sent some defective ammo to CCI.  They had me box it up, and put a square/diamond shape symbol on it.  UPS picked it up.  Nothing else special.

The symbol is called "limited quantity" .  I googled it, printed it, and put it on the box (entirely covering the symbol with clear packing tape).

There are two different sizes of the symbol.  Which one you use depends on the size of the sides of the box.

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=limited%20quantity%20label

You can also use the ORMD thing, but that will expire in a year or two... don't remember..... google it.