Thumb Wrestling (Subscribe)
Links
Monochrom's Massive Multiplayer Thumb-Wrestling
http://www.monochrom.at/daumen/netzwerk-eng.htm
Explains the basics as well as multi-player variations. Includes photographs.
Samurai Thumbs
http://www.deepfun.com/thumb.htm
Describes how to play this game using helmeted thumb wrestlers as warriors. Includes some variations.
Thumb Wrestling
http://www.gameskidsplay.net/games/other_games/thumb_wrestling.htm
Describes how to thumb wrestle, with a snake in the grass variation.
Wikipedia - Thumb Wrestling
http://en.wikipedia.org/wiki/Thumb_Wrestling
Description of how the game is played.