Sounds great (and not being critical), but just curious, what part of (50 straps for $5 - $6) wasn't appealing. They are 1/2" x 8", which is entirely adequate for bundling a kite, if not, they can be tandemed together to make 16" or longer. They can be easily cut to an "exact" length with scissors, and at that price, they are practically disposable. Another bonus, you will find 1,000 other things to use them for. 😎
Link> Well, I tried to add a link, but it didn't appear to work right. Just go to eBay an search "velcro straps", should you be interested.