I found a swarm the other day when I was out on an errand, all I had to put it in was a cardboard box I found. I brushed them into the box and taped it up good, luckily I had some duct tape in the truck. By the time I got home a few hours later, they already had two combs hanging from the top of the box, each comb was about 3 inches wide and two inches tall, no kidding. I think they were planning to make that box their home.