By Tom Beattie Kristin Juszczyk, wife of San Francisco 49ers fullback Kyle Juszczyk, has hinted at creating special designs for the Super Bowl. Her work gained fame when pop star Taylor Swift wore a customised jacket she made earlier in the NFL season. The “Anti-Hero” singer was seen at Arrowhead Stadium wearing a puffer jacket with No. 87, a tribute to her boyfriend Travis Kelce, during the Kansas City Chiefs’ victory over the Miami Dolphins last month. On January 13, Kristin shared her excitement on Instagram after spotting Swift and Brittany Mahomes wearing her handmade clothes. She express…