Talk about making your mark! A Prospect Lefferts Gardens craftsman is lending local mom-and-pop shops an old-timey feel, devising hand-painted signs that would feel right at home hanging over a 19th-century doorway.  “It feels like I’m a small-town sign painter 100 years ago,” said Travis Fitzsimmons. A Lincoln Avenue resident, Fitzsimmons makes his living as a signmaker, hand-crafting individualized markers, and operating by word of mouth, as shopkeepers swear by the marketing value of his artisanal calligraphy, he said.  “There’s more feeling when you actually have a human being doing brush strokes,” said Fitzsimmons. Fitzsimmons claims he fell into sign making — a profession he…