I made a canopy for my 30 gallon for less then $10. I bought the scrap wood from my local home depot. It was a shelving unit that was white and it had terrible scars on one side so they sole it to me real cheap. Then I bought a 6 foot section of wood. I used the white piece as the top which would hold my new VHO setup. The other wood I created legs out of. It fits on top of my AQ and doesn't look too bad either. Total time less then 2 hours and 5 beers, and under $10.
Good deal.