Made myself some brackets with tin from the transfer site and tin snips. I think Kusko posted a pic of one he made that's very similar. If I had a break and a band saw I'd break long lengths of the stuff into the right bends, and then cut them out from the bent shape, but had to do it one at a time with pliers and tin snips.
Cut the piece out about 1.5 or inches wide, 3 or 4 inches long.
Grasp the piece with the lineman's pliers, and bend it with your GLOVED hand (be ware of sharp edges.)
May need to be tweaked a little to get best fit that hold the jaws, but also allows them to clear when the trap is set off.
Use whatever nail you want to secure the cubby and bracket. Right now I'm using roofing nails, but I think I'll switch to duplex nails so that they'd be easier to pull back out. To attatch my milk jugs (or whatever I happen to be using!) I use my knife to gouge a big enough hole for the head of the nail to go through and then a slit upwards of that to slide the shaft of the nail up with the head holding the jug against the tree. I think Dirt had a pic posted of this as well. If you wanted you could make them bigger for bigger conis, unsure if they'd be be stiff enough...I just don't know. Ya'll be safe out there, hope this helps somebody!