i came across this ad, and thought i'd share it. i e-mailed the people, they said they're still accepting people. i'm waiting on them to e-mail me back with more information (and any stipulations), but if you want to go ahead and e-mail too, here's the addy.
Laminate flooring manufacturer is looking to test product in homes with Great Danes. Company will provide one room of new flooring and installation free of charge to any Great Dane owner willing to let the company monitor the performance of the floor in their home after a few weeks of living with the floor. Interested, qualified parties should contact akurtz@lcwa.com.