1 1/2" wood blocks (34)
Spray Paint (yellow, brown, black)
$20 - $40 depending on what type of paint you get
Step 1: Question Blocks
After the yellow paint dried I created some quick hand drawn stencils out of a file folder. One at time I layed the stencil over a side of the block and hit it with a few squirts of brownish spray paint.
Granted they aren't works of art, but they'll get the job done. I'm sure my son will play with these until they wear out.
Step 2: Brick Blocks
After the brown paint dried I made a quick stencil that would make the horizontal mortar lines on the brick blocks. I hit the blocks with a quick blast of black spray paint. I sprayed a side, let it dry, turned the blocks, and sprayed the next side....and so forth.
When all of the horizontal lines dried I sprayed some paint into a dixie cup and hand painted the vertical mortar lines and touched up the horizontal lines.