Shares of Euro Disney S.C.A. (ISIN: FR0000125874) can usually be obtained online at all the international stock markets. Just ask your local bank about it, or your friends who are familiar with all that stock stuff 
The advantages to hold shares of Disney Paris are:
- you own a little bit of your favorite Resort, can theoretically participate in collective decisions, will get financial information etc.
- owning 500 shares or more you can register for the Shareholders Club, giving you some benefits (like exclusive ride previews or discounts)
There's a complete FAQ about shares and the Shareholders Club at »http://http://www.eurodisney.com/en/0311.php
What I don't know is how to get a printed share as a decorative and still "official" document to put in a frame and hang it on the wall.
Oliver ••••
Thats not really possible for a Disney Sca share.
Ps. The share price on the moment is: L. 0,09 11 May 00.29 GMT+1
You can buy shares pretty easy from a (internet) stock company.
I got them from Binck.nl a Dutch company. (as I am from Holland)
On the moment I own 4000 shares but, I am thinking to buy more soon.
Do not expect anything from the Disney Sca shares on the moment...
The financial situation is improving but, it will take some time (years)
before your shares will be worth something nice.
The shareholders club gives you access to a free phone line (if you have
questios, a special club, a membership card, discounts and special
previews. Also the shareholders meetings can be very interesting as
you get a inside look.