Here is another great use for corks. Watch this video, courtesy of YouTube, where Michelle Kaufman shows us how to make a mud mat out of recycled cork stoppers. This is a super cool project, but will take some time.
If arts and crafts are not your thing, you can support the ReCORK America program by sending or dropping off your used natural cork stoppers to a participating collection center.
Cheers
Team Wicanders
Wicanders Cork Oak Blog 
Nice, I wish I could find the link to the instructables.com how-to video that is some what similar to this, tons of amazing stuff on there.