Homemade Fiberglass Popup Truck Camper - still in progress, but figured I'd share some pics as I just did a test drive with it on the Taco : r/TruckCampers
Build Your Own Pop-Up Trailer : 7 Steps (with Pictures) - Instructables
How to Make a Pop Up Card (with Pictures) - wikiHow
Pop up cards tutorial: 4 quick & simple designs for any occasion - Hobbies and Crafts