Hmmmmm, <wheels a-turn'n>... Ok,, Being the type of plastic that soda bottles are made of,, wouldn't the heat of summer make them want to return to their orginal shape..?
The top of the canopy has an easy curve, the sides are rather flat.. Where the two meet it is a 'sharp' join and not a curve.. Dunno if a soda bottle would conform to such a radical 'bend'.. ):
Howeveeeerrr.. the good part of all this is, as I do about three ,two litre DDP a day I have a few bottles I can wreck,errr, mess with...

I was hoping that someone may have one, or KNOW who actually made them.. Seems Ms. Young isn't too willing to offer any info on this even tho CG is no longer..
Robby