Various other objects are often used for added showmanship. Tennis rackets, throwing knives, or lit torches may be used in place of clubs. Apples or raw eggs are sometimes used in place of balls. (The performer will typically take bites of the apple in the middle of the act.) Other more extreme examples might include chainsaws, bowling balls, or other heavy or unwieldy objects. These are of course, considerably more dangerous, and usually only used by the most experienced jugglers. Some performers will mix various objects of widely differing weights, sizes, and shapes, requiring them to adjust their throwing force for each object.