For some reason this whole article brings to mind the Texas A&M annual concrete canoe races sponsored by the Engineering Dept. Haven't checked on them lately to see if they still run them.
Update:

http://engineering.tamu.edu/essap/areas/enrichment/design
The concrete canoe competition, which was organized by the American Society of Civil Engineers, is held every year for school teams from all over the region. The teams are limited to meeting a list of criteria, the concrete must pass a variety of tests, and the canoe is constrained to specified physical dimensions. Eventually, the teams race their canoes and the first place team advances onto the national competition.
Website (unavailable to mere mortals ... monkeynote)
Contact Info:
Mr. Andrew Curtis
Email: andrew_curtis@neo.tamu.edu
Email: aggiecanoe@gmail.com
http://engineeringworks.tamu.edu/2007/row-row-row-your-concrete-boat-2/

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