With Ding Dong Splat!, one of you tells a story and everyone else does the sound effects. It doesn't matter what your story is about, but tales of spooky houses or trips to the farmyard always keep everyone going for ages. Be sure to include good noisy things such as footsteps, thunder, laughing, sneezing, police sirens, farting pigs and a trumpet fanfare. Make sure everyone has a go at being the storyteller.
A good one for a jam is Who Are You And What Do You Do? Take a good look at any person in a nearby car, and try to imagine what their name is, what they do for a job, whether they are happy or sad and why, which football team they support, whether they have ever been told off by a policeman, what they got for Christmas, etc. This is also great on a train journey as long as other passengers don't catch you staring at them.
And if you're still bored, get rid of some of your frustration with a bit of Car-Drumming. Twiddle the radio tuner until you stumble upon some suitable music - anything with a solid drum beat will do. Then get drumming with imaginary drumsticks and an imaginary drum kit around you complete with cymbals and percussion accessories. Shake your hair in front of your eyes and pout, then get drumming. Wink rock-star style now and then into an imaginary camera. Be careful not to poke anyone in the eye or hit the front seats otherwise they may just show their nastier rock-star temperament!
