Watch out. It's Daniel "Cobb"
A few years ago my housemate Daniel had me watch the entire series with him. Excellent series. So when Daniel's birthday came up I asked if he'd like me to make something. He had a little spasm when he realized I could make Jayne's hat for him.
A few days after getting the hat, Daniel was listening to some sort of podcast (I forget which) and called me up when he learned that in the movie Serenity, the crashed ship on the Planet Miranda was numbered C-57D. That is the same number as a ship in Forbidden Planet. Fun little factoid.
After he told me, I asked, "Were you wearing the hat?"