The PBL example.
In which, I will ask that if you wanted to try this execise yourself, then post your responses on my messageboard. I will then post comments and the actual end result that was done by the prospective company on Monday.

The Scenario
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A certain multinational corporation has a problem. Due to the actions of a disgruntled (and now unemployed) employee, they have 3.1 million *empty* tea bags that have already been tagged (the bags are sealed, and the string is compressed, not stapled, onto the bag already with the tag). They would like to determine the best possible way to make use of these empty tea bags to recover cost and potentially profit if possible.

They have access to plants (as in factories) that can seal tea bags, but none that can unseal them, and anything that is too labour intensive (such as manually opening tea bags) is too costly and thus will not be acceptable.

The company has relationships with many other companies such as (but not exclusively)with :
Farming and Home Gardening companies
Publishing and Book Manufactuers
Pharmacutical companies
Hotels and Hospitality industries.

What are potential usage solutions to recover costs and get rid of the 3.1million empty tea bag stocks?
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The final solutions that were implemented was actually quite ingenious, and well, profitable.
It isn't restricted in any fashion except for the manual labour aspect.

What does this have to do with science?
I'll explain that along with the comments etc on Monday. We had 30mins to do this, and my group came up with about 16 ideas.