We splurged at the park and bought the Disney misty fans---16 bucks a piece, I think??? The kids didn't mind carrying them, and they were handy when it got really hot, but the first one broke about an hour after we bought it! DH found another misty fan vendor, and was suprised when he exchanged it for a new one, no questions asked. Well, from then on, every time one of the darn things broke, we found a vendor and exchanged again. We got a new misty fan from EVERY SINGLE PARK, probably 5+ times.
They may be overpriced, but you can't beat that exchange policy......