NEEDHAM (CBS) – A 12-year-old girl from Needham has come up with an invention that could win her $250,000.

Grace Murphy is one of five finalists in Frito-Lay’s inaugural “Dreamvention” contest.

She invented the shoe purse, which lets you keep your jewelry in a safe place while playing sports.

You can vote once a day up until November 27 at MyDreamvention.com.

Comments