Loony toon solution. Now that'll move tons of goods.

Cardboard Bicycle Brings Costs WAY Down
We already know how wonderful, efficient, fun, safe and green cycling is. The only problem, however, is that for people interested in getting into cycling--but who aren't sure if they'll like it or stick with it--it's hard to justify making an investment in a bicycle, even if it is of the cheap (some might say schlock) Wal-Mart variety. Well, Phil Bridge, a 21 year old design student at Sheffield Hallam University, has come up with a solution (maybe): build the bicycle out of cardboard! Why? Because it makes it extremely inexpensive. In fact, Mr. Bridge claims he can sell the complete bike for around $30 USD. At that price the up-front cost of the bicycle becomes a non-issue.

More lunacy here