A small bakery in Quincy has donated over $10,000 to the family of 8-year-old Boston Marathon bombing victim Martin Richard by creating and selling cookies in his honor. Beth Veneto, owner of Ginger Betty’s bakery, said she came up with the fund-raising idea when driving past a Squantum bake sale supporting the Richard family. Veneto said she went to donate some gingerbread cookies from her shop to the cause, but was inspired to create a cookie especially for Martin. “I thought, ‘Let’s make a peace cookie to help share his message,’ ” Veneto said, referring to a well-known poster of Martin imploring for peace. “The cookie creation became the gingerbread circle (representing sharing cookies, making friends), the peace sign with the M, and the heart (representing love and peace for Martin),” Veneto said. Veneto donated several dozen cookies to the girls at the Squantum bake sale, then started selling them in shop. After selling over 1,500 cookies in store, Veneto said she teamed up with the girls who ran the Squantum bake sale, and they sold 1,800 through Quincy public schools. “We will continue selling the peace cookies here at the bakery and sharing Martin’s message,” she said.