tinny boat questions

[the local angler]

i have about a 12 ish 13 foot tinny car topper boat and when i use it i always get sunburned even with sunblock. my questions is it possible/safe to put some sort of canopy or a Bimini top on it? if it gets windy would it turn the boat into a kite or a submarine? i was thinking about this when i was at traver's a few years back and saw a zodiac inflatable docked at the boat launch and it had a folding canopy on it and thought it was pretty cool. it would be nice to have a bit of shade on the boat. are there kits you can buy or do they need to be custom made?