Yard - Concrete Block 8x8x16
Oldcastle
http://www.lowes.com/pd_10383-44840-8008_0__?productId=3608978&Ntt= $1.32. Then 5% on Lowes card ($1.25). Then 10% HomeDepot match ($1.13).
http://www.homedepot.com/p/Oldcastle-16-in-x-8-in-x-8-in-Concrete-Block-30161345/100350252 $1.32
Aver occasionally on special offer for 98 cents.