@ Angela I wouldn't part with any of mine either. It takes long enough to get them signed!!
I have other things signed by other riders as well. Roby Rolfo signed a diecast bike of his this year at Supers for me, and also gave me a team Tshirt which he signed and he signed all my other Tshirts and caps, photos that I had with me of his!!
Poor chap was glad to get back out onthe track away from me!!
Troy Bayliss signed 2 Tshirts for me..I was watching his eyes while he did that!!

He could have written anything!!
I have something of each rider that I follow signed so I'm happy.
Last year in Sepang we got every Moto GP rider to sign a racing picture of themselves from Phillip Island. Some of them were very happy and said Oh thats Phillip Island!