I really love that as an idea - but it's easy for me to say without knowing how much it might've cost! Custom products like that seem to be extremely rare, so much so that I can't even think of any offhand.
Something that may be more affordable (said without knowing the intricacies...) would be a lithograph of one's character, essentially a tarted-up screenshot I guess. I love the idea of that too, though it may be no more economical to realise.
Failing that, how about a full-size replica of Stone's fortress?
