I am a diabetic so i know lots of these sorts of tricks.

Take a Toblerone chocolate, break it in half being careful to hide the bit you dont use so no else can find it.

Place the unhidden half of the chocolate in a heat proof bowl and add a good portion of thickened cream and if you wish a small drop of rum. Heat the lot over a very slow fire.

Next once the mixture has melted gather some fruit portions like mandrin, green apple, strawberries, banana and of course marshmallows.

Place a single selected piece of fruit on a sharp long skewer and dip away.

However there is a rule to this recipe.

Should a piece of fruit or marshmallow drop off the skewer into the chocolate while dipping then you must kiss the person sitting on your right.

Quickchange your seating arrangements !