If your little one's of school age, chances are you're well-versed in the crazy, colourful YouTube world of slime ? The trend to make, play with and even simply watch videos of the super-stretchy ...

The DIY Slime Kit, made by Essenson and available from ... H Grossman's Ghostbusters slime, which can be bought in Smyths Toys Superstores, had more than three times the limit.