Blink-182 singer Mark Hoppus and his wife Skye Hoppus attended Kourtney Kardashian and Travis Barker’s Italian wedding extravaganza last month If there’s one thing the Kardashian sisters can do, it’s set a fashion trend. Just ask Mark Hoppus’s wife, Skye Hoppus. The 49-year-old entrepreneur and author — who shares son Jack Hoppus, 19, with the the Blink-182 frontman — was …