What you might do is next time your at the Super-Market, start looking at the plastic jars, and bottles, and seeing what kind of shapes you can get out of them. Have an open mind and you'll pick out a whole bunch of different shapes of canopies. I've done this with excellent results, and it costs nothing except for the cost of the item. Bring it home and stow it something else, sneak off to shop and make your canopy. Just a thought here, it might work for you, it got me a real decent canopy for nothing