Blank, a local improvisational troupe, performs at 8 p.m. July 25 at the Art Barn, behind 1060 East End Road. Blank describes itself as “Homer’s finest, 100-percent organic, home-grown, gluten-free, whole-wheat, fire-resistant improvisational troupe.” Admission is $1. Blank also is GMO free and waterproof up to 35 feet. Performances are totally improvised and based on audience suggestions.