Half-Rubber, a game commonly played at the beach, is a loose derivative of baseball.

Hoover-ball was invented, developed and perfected by White House physician Admiral Joel T. Boone to keep Hoover physically fit. It is a combination of tennis, volleyball and medicine ball. Teams of up to five people play on a court 66 feet by 30 feet with an 8 foot volleyball net. A 4 or 6 pound medicine ball is used and scoring is exactly like tennis.  – History of Hoover-Ball, Hoover Association

FootVolley is a sport that was created in Brazil where you volley a soccer like ball without using your hands. The field rules of the game are similar to beach volleyball.

We have all heard of traditional bowling and duck pin bowling but there is yet another type of bowling in this arena. 

Pétanque is a French form of boules where the goal is to throw hollow metal balls as close as possible to a small wooden ball while standing inside a starting circle with both feet on the ground. The game is normally played on hard dirt or gravel, but can also be played on grass, sand or other surfaces.

According to Hockey Gods the game of Bandy Ball: Bandy Ball is played on ice, using a single round ball. Two teams of 11 players each compete to get the ball into the other team’s goal using sticks, thereby scoring a goal. The game is designed to be played on a rectangle of ice-field which is the same size as a soccer field. Bandy Playing Rule 2.1 The ball: The ball shall be made of approved material in an easily visible colour. When dropped on firm ice from a height of 1.5 m, the bounce shall be regular, 15 cm at least and not more than 30 cm. The diameter shall be 63 mm +/- 2 mm everywhere, and its weight shall be at least 60 g and not more than 65 g when unused. References: Bandy Playing Rules – http://www.worldbandy.com/ckfinder/userfiles/files/Rules/Internationella-bandyregler-12.pdf Photo – http://hockeygods.com/hockeys/15-Bandy

Developed in Canada in 1976, the sport’s original name was murderball. Wheelchair rugby is played indoors on a hardwood court. The rules include elements of wheelchair basketball, ice hockey, handball, and rugby union. It is a contact sport and physical contact between wheelchairs is an integral part of the game.

Paintball competitions have regulations just like other sports. Paintball balls have to be a certain size and can not be pink or red. 

Shuttlecock is the ball of badminton and there are rules as to what it can looks like. 

Elephant polo is similar to traditional polo except for one major difference, they are on a giant elephant! The equipment that is used is similar to polo such as the ball and a longer mallet. According to the World Elephant Polo Association Rule 1 of the organization section of the rule book: 1. The Game will be played by four players on each team. The game is played on a marked pitch of “100-120 metres x 60-80 metres”, using a standard size polo ball.