Don't want a heavy wooden nuc or just want the fun of recycling/re-purposing something that ends up at the recycling plant? Make these light-weight 5-frame nucs from political signs (or other) after they are no longer useful for their original purpose.
You may see some metal duct tape in these photos, but primarily the purpose of the duct tape was to hold a hinge or corner in place while I burned holes and zip-tied it solid. I left the tape there, but could have removed it. However, metal duct tape is good if you wish to seal a seam or join panels that are too small to allow folding of all corners and bends.
This is my first prototype. I will be making improvements on then second one I make. You can modify these to suit your purpose... add porches, nuc entrance dials, landing pads, or however you wish. I chose a hinged lid, you can just make a separate/loose lid, etc. etc.
If you have ever seen old political signs discarded, you will notice that they hold up very well to the elements and probably will last as long as unpainted or painted wooden nucs.
On this 3-Frame version I left a little bit of a landing flap at entrance end.. plus I made a little slide gate to close off (or open) the entrance hole.