Urgh. I'm very tired.
From left to right: Younger Son is the Robot Sidekick. The Mau-Mau was utterly delighted to be painted green as the Small But Intensely Annoying Alien. (Yes. She loved that bit the most of all.) Elder Son, the star of the show as it's his party, is resplendent in the silver helmet and lightning-bolt T-shirt of Rick Steele, Space Hero. And on the end there is The Time Traveller, who has come forward from the Victorian era - or some equally moustachioed point in history.