Golf ball

A golf ball was a small ball covered in indents used in the game golf. Brian Williams found a pair in his pockets while aboard the Silurian Ark and used them to lure Tricey. (DW: Dinosaurs on a Spaceship)

When a pair of Craktors came to the Pontyvale Golf Course, the eggs were disguised as golf balls. (TM: Ma and Par)

A Dogon Sixth Eye fell out of the sky while Mr Garret was playing golf. Its familiar shape caused him to misidentify it as a golf ball. (TW: Random Shoes)