The most unusual version of Bowls is a miniaturised version of the game called Table Bowls that originally appeared as a pub game around the district of Carlisle. In this game a miniature set of bowls and jack are played on a standard 12 x 6 feet Billiards or Snooker table. The bowls and jack are rolled down a wooden chute which is placed slanting on the table edge with one end on the table. No impetus is allowed to be given to the bowls - it is purely the angle of the chute and how far up it the bowl starts that determines its final position.
More information at http://www.tradgames.org.uk/games/Bowls.htm#CrownGreenBowls