I called and ordered the slipper today (kept forgetting to do so earlier in the week). They "prefer to avoid reference to bodily functions" in the message. I ended up going with:
gives a pretty good explanation. There are photos if you search as well (scroll down to the bottom of the searches for thread specific options). Basically you need to call 407WDISNEY to reserve and it's around $15 - can be for any occasion. Looks extremely decadent but delicious. I wonder if you could get part of the dessert in a "to go" box...