I was lucky enough to watch someone design a circuit the other day, and after 10 minutes of it I was knackered! (That's british for tired, by the way...) So here's how it goes...
Incredible Bodyweight Circuit!
1 minute Burpees
Then alternate 30 seconds on and 30 seconds rest for the following:
Then stretch for 5 minutes!
I love this circuit, I hope I'll do it again. I was mega-tired at my gym session after trying this - I could feel the pushups in my arms for sure. 30 seconds of pushups is a lot of pushups!
If you're looking for some more inspiration, The Greatist has a lovely set of 50 bodyweight exercises perhaps you can design your own 10 minute circuit!
(And this workout is only 30 minutes - that's 2%!!)