Box of Rocks

Send a box of rocks to your enemy. Or your friend! Include a custom message, for example
 
"You rock"
"Dumber than a box of rocks"
"Don't take it For granite, someone loves you!"
"This gift really rocks!"
"Just a little sediment to show I care"
"When life gets tough, just be a little boulder!"
"A little piece of earth, because you ground me"
"I wanted to get you diamonds, but this was more down to earth"
"I couldn't find coal but this will do!"
"You've hit rock bottom, enjoy!"
 
or whatever's clever!
 
Box size is 4x4x2.Free shipping. Addresses must be in the lower 48.