I needed to make some trays for holding all of these planter pots I'm filling with starts. So I looked around for some building materials.
I've collected a few old license plates over the years. It turns out they're good for something: making cool looking trays out of!
Method: make a frame (out of an old 1x1 bean pole). Be sure to overlap the corners. Then attach the plates to the back. I used a staple gun - the variety that is powered by an air compressor. Screws would also work nicely.