Lewis and Finley made their own plastic with the recipe from How we Make Stuff. They said that it turned out a bit more crumbly than it should have done, but it was fun! Thank you so much for the picture!
Here is the recipe if you want to have a go:
What you need:
1 cup of milk
4 tablespoons of white vinegar
A bowl, a sieve and a spoon
A microwave or hob
With the help of an adult, heat the milk in the microwave for two minutes or in a pan until it is hot, but not boiling. Add the vinegar and stir. Pour the mixture through the sieve - careful, it will be hot! Spoon the lumps out of the sieve, then let them cool. When the mixture is cool enough, you can mould it into different shapes before it hardens.