Basic one-dollar Mexican gelatinas, which typically are prepared from packaged mixes. More-elaborate renditions might add nuts, or mix variously colored cubes in what appears to be a creamy base, though this is generally gelatized, too.
From a showcase that also included vanilla, chocolate, grape, lime, and pistachio, among many other choices, I went for the strawberry, which had the color if not the full flavor of Bonomo.
Gelatina cart
East 116th St. near the southwest corner with First Ave., Manhattan
Encountered on a weekend afternoon; hours unknown