Rainbows in the Lehigh Valley Gorge

[TMo]

I typically use 67-lb cardstock, but as long as the printer can get them through, the heavier stuff should work well. You will have to help the fold lines - either on the back side of each fold or lightly on the front side using a straightedge and something sharp (I use the back side of my blade). Gap-filling 5-10 second cyanoacrylate glue is also recommended. Good luck with the containers! I'm guessing they were from teamtrackmodels.com?