Shape: Round
Color: Pink with red speckles
Scoring: Scored around the edge
Size: Approx 7mm across
Imprint: On one side it says "No1" (the "o" is superscript)

I have tried to find a picture of it, the nearest I can find is this: http://www.sixthseal.com/archive/Sep...3/penguins.jpg only without the penguin obviously.

Any idea what it is?