I went to the brilliant National Museum of Football in Manchester last month, and one of the items on display is an actual Man United shirt from that 1909 FA Cup Final.
As well as this interesting football programme...
On a slightly separate note, I was just looking at our 2014-15/squad. I'd forgotten how prolific a scorer Aden Flint was. With a record of nearly 1 in 4, he was our second-highest goalscorer, ahead of Kieran Agard. Amazing really