I've heard rumours that the Sheraton does a great one with champagne but have never been so not sure when or anything. It would be a bit pricey too I would guess.
Also heard that Cupcake shop (Simply Cupcakes?) outside TSS has them too. Again haven't been but their cupcakes are yummo

Good question though Bubbamumma, I look forward to hearing from others who have actually been to one - it's been on a 'things to do' list in my head for a while now...