Cadbury are in Potters Field Park tomorrow from 9am with London's first giant frozen penguin, sculptured from over 1 tonne of ice and full of ice cream - this will be live streamed melting on Facebook throughout the day, asking people to guess Marvin's melting point when the ice cream is released. We are also giving out free ice cream to anyone who comes along.

If you miss it not to worry - here is your chance to enter a competition to guess the melting point for your chance to win a year’s supply of ice cream!

All you have to do is fill in this form – it only takes a minute.