The local celebration of the 50th anniversary of William S. Burroughs’ novel “Naked Lunch” kicks off tonight with an exhibition of some of his art objects. The objects, provided by William Burroughs Communications, will be on display from 6 p.m. to 10 p.m. at the DotDotDot ArtSpace, 1910 Haskell Ave. Among the items are stencils, stamps, “paint-covered curiosities” and others. Some of Burroughs’ paintings also are on display at the Bourgeois Pig, 6 E. Ninth St., where there will be an opening reception from 5 p.m. to 9 p.m. Sunday that will include live music and readings.