'Queen of Slime' gives professional slime-making tutorial Karina Garcia, the "Queen of Slime," taught "Good Morning America" how to make slime.

People have even set up shops and started selling the stuff – the slime world is a booming industry, apparently. If you want to get in on the trend, here are 12 of the best tutorials out there.

This Halloween, learn how to make your own Ghostbusters-style ectoplasmic slime with this DIY video tutorial from the Official Ghostbusters YouTube channel.

Some slime-makers have come up with substitutes for the harmful cleaner, uploading YouTube tutorials of safe ways to make the toy.

The containers show it all: there's scented slime, neon slime, glitter slime, foam slime, and at the time of this screenshot the narrator was making glow in the dark slime. Yum.

There’s a new craze all the kids are obsessing over: slime. Video tutorials showing how to make the substance have taken over the internet in the past year. The fun material can be made at home ...