It takes guts to pitch a business idea to an intimidating group of celebrity investors on national television. But it takes grit — and, of course, a distinctively innovative concept — to win them over. Lisa Bradley and Cameron Cruse did just that in February, when they walked away with a $100,000 investment from Mark Cuban on ABC’s “Shark Tank.” Their proposal: to employ hundreds of U.S. military spouses to make gorgeous, artisanal, 100% American handmade bags from recycled military surplus materials.