At my daughter's birthday sleep-over party a week ago, the girls assembled their own pizzas, but I hadn't put much thought into interesting toppings. So I reached for the tube of edible cake glitter I'd used to decorate her cupcakes. The pizzas looked so festive and twinkly by lamplight, as did the girls, who had glitter all over their faces and in their hair. I'm frustrated that this daylight snap doesn't capture the sparkle and flash of the finished product. By lamp or candle light, they look as if Tinkerbell has tinkled from olive to olive, swishing her wand from side to side.
Postscript, 8 May 2012: The UK Food Standards Agency has recently issued guidelines about the use of about edible glitter, in response to consumer concerns.