Sports: Baseball Bat; Golf Balls; Golf Drivers; Mountain Bicycles;

1 a : a source of diversion : RECREATION b : sexual play c (1) : physical activity engaged in for pleasure (2) : a particular activity (as an athletic game) so engaged in
2 a : PLEASANTRY, JEST b : often mean-spirited jesting : MOCKERY, DERISION
3 a : something tossed or driven about in or as if in play b : LAUGHINGSTOCK
4 a : SPORTSMAN b : a person considered with respect to living up to the ideals of sportsmanship c : a companionable person
5 : an individual exhibiting a sudden deviation from type beyond the normal limits of individual variation usually as a result of mutation especially of somatic tissue

Bicyles : a vehicle with two wheels tandem, a steering handle, a saddle seat, and pedals by which it is propelled; also : a stationary exercise machine that resembles such a vehicle