My second choice of swarm trap would be the wood nuc box. These boxes pictured here are homemade and hold six frames. Five frames will also work well.
A simple 1x4 screwed on the side using sheet rock screws will hold the trap on a nail driven into the side of a tree. Or if you don't like the idea of driving nails into living trees, you can use the 1x4 and some baling twine.
A disadvantage is the weight, especially when you put in a ten-pound swarm of honeybees who got a jump on your inspection trips and have started storing nectar.
The roof of these nuc boxes is a sheet of 1/4" plywood screwed down with 5/8" sheet rock screws. To remove the swarm, I smoke the entrance, then take out the screws with a cordless drill.
These traps are unpainted, and they do warp a little. Paint is probably in order. However, they are excellent for giving the bees a darkened environment that they find very attractive. They also hold six brood frames which makes the transfer of bees out of the trap and into a brood box quite easy.