Wearing a NPR t-shirt, Neil Patrick Harris, star of "How I Met Your Mother", is seen walking back to his car after stopping off at his local Bed, Bath & Beyond. After New York state legalized gay marriage, Harris, who has twins with his partner David Burtka, tweeted, "David and I did propose to each other, but over five years ago! We've been wearing engagement rings for ages, waiting for an available date.