Apparently this is the latest Christmas dinner "must have" a chocolate bomb by Braquier the chocolate company. The bomb is filled with candy, sugared almonds and all sorts of other goodies. The outer shell is made from 70% dark chocolate.
You place the Braquier bomb in the middle of a table, light the wick (you have 30 seconds) and let the fun begin. The bomb explodes and chocolate and candy go flying.
Personally I prefer a more sedate Christmas dinner party, but I am sure that there are many who would enjoy this. If you are interested you can purchase it here. It is made in France and as far as I can see it is only available for shipping in Europe.