Great idea to donate them to the flooded areas! I am sure people appreciate that and the first responders having some way to safely get them from one place to the other. We recently had to take our cats to the vet and all we had on hand was a box we had bought apples in. It worked great as there were holes all around it for them to breathe in but they weren't big enough to escape out of. We had to buy a huge crate when flying our dog from Dallas to Panama City. Crates are a good thing to have!