I invented this after two restless nights trying to come up with something that might win in the duct tape and cardboard contest. It's a brief case that has a good amount of space inside, and can flip open into a small workspace with two convenient drawer on each side. It's useful, appeals to people of all ages, and is complex, but not so hard that 90% of people with throw it down half way through in frustration. These are instructions for a 12" x 18" x 4" brief case, so if you need a different size then you will need to change some measurements.
Step 1: Materials
Unfortunately, I just discovered that I forgot to take a picture of the materials, so you'll have to use the list alone(sorry).
1. Five or six large cardboard boxes(a little bigger than one cubic foot each)
2. Duct tape(two medium sized rolls)
3. A foot long ruler
4. A tape measure(at least ten feet long)
5. A pencil
6. A pocket knife or other small knife