We got it home and had to take out all the icky styrofoam which was growing trees in it!
We took all the boards off the top to get rid of the rusty bolts and cut off the bottom steel to give it legs. Then used a wire wheel to clean the steel (it too was covered in gunk and rust). To finish off the steel frame we sprayed a clear coat of Rust-oleum Crystal Clear Enamel. And sanded the boards down to get rid of all the splinters.
We re-stained the wood with a coat of semi-transparent wood stain for $5. (at Ace Hardware, in their paint section, they have clearance cans of paint and stains that's been returned mainly b/c people didn't like the color). Ryan added some stainless steel feet with rubber stoppers so the steel frame wouldn't scratch up the stone.
...and here it is done!
now we have an awesome, functional outdoor coffee table/bench that is pretty much in-destructible!
Total cost of project: $19
$5 on stain
$4 Rust-oleum Crystal Clear Enamel
$10 on feet