A football
A football was a type of ball used in the Earth sport of football.
In 2151, a football was aboard the Earth Cargo Service freighter ECS Fortunate. Captain Keene and first officer Matthew Ryan played with it in cargo module 4 in a low gravity. (ENT: "Fortunate Son")
In 2380, Brad Boimler ordered the computer on the USS Vancouver to analyze all the coolest people in Earth history and replicate him a composite outfit. The result came with a football. (LD: "Cupid's Errant Arrow")