I purchased 4 - 1x6x6 cedar fence pickets from Lowe's for $2.52 each. How's that for cheap?
I already had some 2x2 pieces in my garage along with 1 1/2' wood screws so I was ready to go.
Using my miter saw I cut each picket so that I had a 2 ft piece and a 4 ft piece. I also cut the 2x2 into 4 12" pieces.
This photo shows the full picket...and then the cut pieces.