All you need is a bow tie

The other day, I was talking to Dylan and I was asking him if he had a girlfriend at school. (His friend Joseph has 2 of them.) He insisted he didn't and implied that he didn't have time for them.  However, he did say that he was going to marry Eliza, our neighbor.  He said that all he needed was a bow tie, but that he didn't have one and doesn't know where to get one. I asked him if he was going to get her a ring. He didn't seem to think that was important. Oh and he needs a shirt, a black one...yes a black bow tie and a black shirt. Oh, and Eliza is going to need a white dress.  There, he finally considered what she might need.  Whew. Thought he had already planned the whole thing and planned her right out of it.  Where does he get this stuff?