i just made one last week. i dont have a pic of it, but if you pm me, i'll send it to you.
basically, the back was an 8x11" card stock paper....i titled it "Days until Disney" in the Disney font and used a background picture of a cloud (i believe) that in each corner had mickey, minnie, goofy and donald (or so my memory recalls).
then for each day, I used different disney pictures (added on each one - the number of the day), cut them out, laminated them, punched a hole into the top center of each one, and hooked on to the background.....
its really cute....i'll email you the parts if you want to make your own - and by seeing it, my cryptic description should make sense