Some kids play soccer. Other kids make slime. Guess who has more money for college?

Take, for example, Rancho Santa Margarita teen Nick Werfelmann. The Tesoro High student and social media slime sensation just bought a 2019 Tesla Model 3 for $45,000. With cash. He’s 16.

Related: Photos: Tustin gets slimed

You can meet him Sunday, April 28, at the SoCal Slime Bonanza at The District at Tustin Legacy. He’ll be among 40 of Southern California’s social media slime celebs selling their creations.

Ashley Kua, 16, will also be there. The Valencia girl has 1 million followers on her Instagram account @slimeyoda. Off the top of her head, she said she has about $300,000 in slime profits saved up for college, give or take.

If you are completely confused about how slime turns into money then go online right now and punch in the word slime.

Thousands of videos will pop up: mesmerizing close-ups of hands methodically poking, slapping, stretching and caressing colorful blobs and bowls of slime. This isn’t the gross green slime you see on Nickelodeon, by the way. We’re talking about slime that resembles liquid and makes a splashy sound when you play with it. Slime that is fluffed up with shaving cream or jiggly like Jell-0.

Some slimes are a translucent sea green that you can plunge your hands into, others are like rainbow-colored taffy.

As pretty as they look, the real appeal is the sound they make when they are manipulated. Depending on the ingredients you add (foam beads, Vaseline, instant snow) they might crackle, crunch, or even make a slurping sound. Think of the satisfaction of popping bubble wrap and you get the idea.

Young and old alike have sworn by the therapeutic value of slime videos. Some even say they get an autonomous sensory meridian response: a relaxing tingle, often starting in your scalp and traveling south, triggered by a soft, repetitive sound.

Now, stay alert, because this is where the money comes in. Slimer kids (and most are kids) don’t just make free videos for you to watch; they sell their creations. Nick has sold about 14,000 slimes, he guesses, since making his first video when he was 14 years old — on Feb. 21, 2017 (he has the date memorized). They sell for $5 to $15 (for a 16-ounce container).

Nearly 500,000 fans follow his Instagram accounts @itsslimetyme and @theveganslimer. Most of his customers are girls ages 10 to 15, but he does get comments from older clients saying that playing with his slimes help their anxiety and their arthritis.

Nick’s biggest seller is his Strawberry Twizzler, which smells like strawberry licorice. A video of his hands kneading a giant mound of Strawberry Twizzler has gotten 11 million views.

Perhaps the most viewed slime video of all time, though, was made by a former Riverside waitress named Karina Garcia, a.k.a The Slime Queen, according to a New York Times story.

As of today, a video of her making a 100-pound slime ball has gotten more than 26 million views. When the Times story came out (July 2017), she also had advertising partnerships worth up to $200,000 — a month. But then, she has a YouTube channel with 9 million subscribers.

All slimes, by the way, begin with basic ingredients that are both cheap and easy to find: glue and Borax and food dyes and essential oils. Some of the scents are mouth-watering.

Ashley’s biggest seller is her I Loaf You Puff.

“It literally smells like dinner rolls,” she says. “And it feels super smooth, really velvety.”

Her other top seller is Yummy Gummy Freeze, which smells like tropical fruit and feels cold in your hands, like a Slushee.

The junior at Trinity Classical Academy, a private school in Valencia, dreamed of med school but now that her slime sales are booming she wants to study business or advertising, preferably at Stanford, Duke, University of Pennsylvania or Brown. She’s hoping her slime profits will cover tuition.

Ashley said she got into slime two years ago after seeing a video and instantly feeling relaxed.

“It’s, OK, I have a 10-minute break, let me play with some slime,” she says. “When I’m stressed out, when I feel kind of fidgety, it’s something I can squish; kind of like a stress ball, but better.”

Ashley has sold about 25,000 slimes online and another 15,000 at conventions, mixing up batches when she’s not doing homework or playing in tennis tournaments.

Nick says he ships up to 400 orders a week; thus the Tesla. He uses it to make post office runs.

The car purchase didn’t wipe him out, by the way. He guesses he’s got another $20,000 to $30,000 for college (plus another year of sales before graduating high school). He couldn’t give an exact total because it’s in several accounts and he hasn’t added it all up lately.

The Tesla arrived several weeks ago. In a role reversal, his parents have taken to borrowing it.

“It’s like kinda crazy,” says Nick, who’s only had his driver’s license for eight months. “I just go with the flow. My parents are really supportive.”

If you go

What: SoCal Slime Bonanza

When: Noon to 3 p.m. Sunday, April 28

Where: The District at Tustin Legacy

Tickets: $20 (accompanying parents get in for $5) at eventbrite.com/e/socal-slime-bonanza-4-tickets-55789154864