Sarah and Chris Lopp started Funktified as a passion project. Now, they employ 15 people and offer health and dental benefits to full-time staff.From retro collectibles to custom hats made in Europe, small businesses like Funktified and Funky Brims are helping define Broken Arrow's growing identity during National Small Business Week.WATCH: Broken Arrow's small businesses shape the city's identity during National Small Business Week Broken Arrow…