Washington businesses and hotels are capitalizing on the return of pandas to the city's zoo after a yearlong absence.

Become a 'panda pawrent' with the new Ocean Park Panda Twins Fan Club, offering exclusive merchandise, priority booking, VIP tours, and more.

Many of them flaunted panda-themed accessories such as headbands, hats, backpacks and plush toys. Guided by park employees, the long line proceeded in an orderly manner, with many visitors briskly ...