I salvaged all the wood in this project, but screwed up the concrete bit, twice, so that cost a little bit. Between screws, polyurethane, and concrete, it should run about seventy or eighty bucks.
You will need these materials:
An old panel door, preferably solid wood
4 3'-4' pieces of 2" x 6"
6 24" pieces of 2" x 4"
40-60 lbs of thin-set anchoring/expansion cement
1" drywall screws
3" drywall screws
You will need these tools:
Grinder (optional for polishing concrete or grinding down if you over-fill)
First five photos by Mr. RaMell Ross (http://www.ramellross.com)