The inventiveness of Randall Munroe never ceases to amaze me, only surpassed by the determination of some of his fans. Take this cartoon for instance, suggesting the idea of getting a picture of you playing chess whilst on a rollercoaster.
All good fun and a good cartoon. But then follows the challenge for people to go ahead and do it for real. Inspired.
The best entry on this page, in my opinion though, involves Jenga. Now, don’t try this at home (or on your local ‘coaster for that matter).