Yabba dabba keycards

You know how the Flintstones had modern-day amenities like vacuums and cars but everything was made of stone or woolly mammoth bones? Well, the "progressive" Democratic guests at the DNC in Denver will be entering their rooms with a Flintstone-esque innovation from Sustainable Cards.

These literally are keycards made of wood. They function in the same way—thin rectangles with a magnetic strip that you swipe to unlock a door—the material is just wood instead of plastic. If there was a colonial times version of the Fintstones, this is what guests at their hotels would have used. The reason for these cards in 2008 is the environment. The cards are 100-percent biodegradable, requiring far less fossil fuels to create them. And to top it all off, the wood comes from sustainably harvested forests.

With thousands of keycards plowed through each year per hotel, this may be an interesting move into a cleaner, greener future. Hey, if we ever want to ride in flying cars and have robot maids like the Jetsons, certain steps need to be taken, right?