The Genuine British Army Basha makes for a good individual tarp,

http://uk.youtube.com/watch?v=EYXEyKYjOqE

http://www.surplusandoutdoors.com/ishop/877/shopscr1653.html

The Australian defence forces Hootchie is pretty good as well being slightly lighter but more expensive

http://www.raymears.com/Bushcraft_Product/81-Australian-Waterproof-Hootchie-Flysheet

Hilleberg also makes a nice tarp called the Tarp 5 XP

http://www.moontrail.com/hilleberg-tarp5.php