rolla dice and whoever rolls a six goes to the middle of the room and has to put on hat scarf, gloves and cut up a mars bar with a knfe and fork (Mars bar has to have been in freezer to make the gae last longer). meanwhile the dice is still being thrown and when soemone else throws a six they have to do the same i.e. the current person in the middles has to take of the clothing and the new person get dressed then eat the bar etc etc. the winner is the person who eats he last bit of mars bar
For my ds 9th birthday we did 'The Chocolate Game' as described by Helsi but with big bar of Cadbury's dairy milk. They also played 'mummies'. Divide into teams of 3, give each team a roll of loo paper and roll of sellotape, set the timer for 5 minutes. 2 team members wrap the other in loo roll - like an Egyptian mummy, best team's mummy after 5 mins wins the prize, they loved it.