The second annual New York Unicycle Festival started off last Friday with Brooklyn Unicycle Day, consisting of a long-distance ride from City Hall to Coney Island. Several dozen unicycle enthusiasts — including one on a uni-pony, above — rode across the Brooklyn Bridge in perfect weather. Other events during the three-day festival included games, relays, hockey and basketball on Governors Island on Saturday. Sunday included a gathering at their traditional meeting ground, Grant’s Tomb.