Online wedding gift registry site Honeyfund is now offering the option to give through gift cards. The company is partnering with a range of retailers including Delta, Bed Bath & Beyond, and Amazon. Sara Margulis, Co-Founder and CEO of Honeyfund, says this strategy diversifies the company's revenue stream. The company is projected to bring in $115 million in registry gifts for 2017, up from $100 million in 2016.