This has been around for 2 years now, but you may not have heard of this previously; if you purchase the deluxe edition of Brian Wilson's Smile from amazon.com UK there's a 1 in 4 chance of a piece of paper with his signature enclosed.
My wife bought this for me last Christmas and we found the paper. It's a replica of the album cover. Sure enough, written in Sharpie was Brian's signature. If I can get one after two years of it being out, you might be able to as well. But be warned, it's quite pricey. Here's the link;

http://www.amazon.co.uk/dp/B00035SDDI/?tag=imwan-21

Good luck. David

Here's the image Amazon UK shows in their listing ~ it's some sort of shadowbox packaging:



Their description:

>> This UK-only limited-edition format, exclusive to Amazon.co.uk, comprises a white box with 3D shadowbox embedded in the lid containing a standard edition CD. This shadowbox is a recreation of the artwork from the centre pages of the album booklet and contains moving cardboard figures. One in four copies will be signed by Brian Wilson; these will be randomly allocated. The cost of this title reflects the limited nature of the product. <<

The link again:

http://www.amazon.co.uk/dp/B00035SDDI?t ... GSRRJKPY3&

Intriguingly, there are two "cheaper" (but still expensive) copies available from their third party dealers.

WOW, what I would do to have this! Can I bribe a UK Amazon employee?

I've bought off the Amazon.uk website with no problems. I don't think I've actually bought directly from them, though... just from third-party sellers via Amazon.uk... but again, I don't think there should be any problem.