We had the puzzle at Flying Fish - we've had it at Jiko and on the cruise as well (Disney must have had a bunch of chocolate molds made).
The 'sushi' at California Grill is another favorite, as is the Chocolate Moose at Le Cellier (which did used to be way cuter five years ago, but is still cute). Smores are at a few places (they were on the Narcoosee's menu years ago, but I haven't been back since).