We bought this balloon for Eliana on Tuesday at the Magic Kingdom, and since then, it has not left her side. It even survived a balloon threatening injury when it got a small hole in the outer balloon. A little Scotch Tape at the hotel concierge took care of that.
The balloon went with us to every park and every ride. Every time we had to fold up the stroller and get in the bus with all our gear, we had to make sure the balloon was safe. I really thought the Scotch Tape wouldn't hold for more than a few hours, and it would inevitably deflate, but the balloon survived, and Eliana got more and more attached.
It even came to bed with her.
DO NOT try to take my balloon away!