When the action figure market heated up in the 1980s, a number of companies were delivering very positive earnings reports to shareholders. Mattel made $350 million marketing its He-Man line in 1984 alone; Hasbro's G.I. Joe regularly topped holiday wish lists curated by newspapers. So did their Transformers, which earned $300 million in 1985.

Many of the more successful figures were either based on or supported by animated shows that effectively acted as advertising for their licensed merchandise. With this template established, it's not difficult to see why toymaker LJN saw opportunity in partnering with the World Wrestling Federation (WWF), a larger-than-life parade of grapplers that clashed in weekly televised matches. The end result—a large variety of 8-inch, heavy-duty rubber figures that could withstand aggressive imaginary play—became one of the most successful toys lines of the 1980s.

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Founded in 1970 by Jack Friedman, LJN had experienced some dizzying highs and lows in the mercurial world of toymaking. In 1982, the company acquired the license to produce items based on E.T.: The Extra-Terrestrial. With other potential licensees dubious about the film's potential, LJN was able to get the rights for a relatively paltry $35,000. The movie, of course, was a massive hit and the products reaped millions of dollars in revenue. Friedman took to driving around New York with a vanity license plate that read, "Thanx ET."

Two years later, LJN was less successful when the company launched a toy line based on 1984's Dune, David Lynch's big-budget, widely ignored feature film adaptation of Frank Herbert's sci-fi novel. LJN paid $2 million for the rights and watched as kids passed up Kyle MacLachlan and sand worm toys in favor of more Star Wars items.

"We all went to Mexico City to meet with [Dune producer] Dino De Laurentiis and got food poisoning," Karyn Weiss, who worked at LJN in product development at the time, tells Mental Floss. "The president of Toys 'R' Us was there. He got sick, too."

Fortunately, LJN had other prospects. As Dune was sinking, the WWF was making a rapid move into popular culture. When MTV began airing their matches, the WWF benefited from the mainstream appeal of guest stars like Mr. T and Cyndi Lauper. The wrestling league and its best-known performer, Hulk Hogan, were something like a touring superhero troupe. Vince McMahon, who ran the organization, had successfully taken the sport from its roots as a regional attraction into something that had national recognition. In addition to a weekly television series, McMahon would eventually profit from tie-in products like shirts and ice cream bars. VHS cassettes of the inaugural WrestleMania and its 1986 sequel would sell more than 1 million units each. Action figures seemed like an obvious next step.

"Wrestling was getting hot and people were talking about it," Weiss says. A meeting between LJN executives and McMahon went well, and the two companies began working on a line of figures and accessories.

According to the Fully Poseable Wrestling Figure Podcast interview with an LJN sculptor, what became the familiar 8-inch, rubber-molded aesthetic of the WWF line happened by accident. LJN planned on making the figures closer in size to the 3.75-inch height typical of most action figures of the era. They sent McMahon the larger prototypes for approval. When he saw their proportions, he figured it was more in line with his mammoth wrestlers and insisted the toys remain that size.

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While Hogan was the clear star of McMahon's roster and was likely going to remain on top for the foreseeable future, LJN relied on the WWF to tell them which wrestlers could be expected to maintain their popularity over the time it would take to get the figures into production. "We met with McMahon every six months and he'd tell us which wrestlers he was going to make popular," Weiss says. "Those are the ones we'd go into production with each year. He'd say, 'Hogan's going to keep the belt, Roddy Piper's going to be big.'"

The first wave of nine figures released in spring 1984 featured Hogan wearing his WWF world title belt, Piper, André the Giant, Big John Studd, Hillbilly Jim, The Iron Sheik, Jimmy "Superfly" Snuka, Junkyard Dog, and Nikolai Volkoff. (Notably absent was Sergeant Slaughter, an anvil-chinned military recruit who allegedly upset McMahon when he signed his own separate toy deal with Hasbro to appear in their G.I. Joe line.)

Once or twice a year, Weiss and other LJN employees would congregate at a production studio in New Rochelle, New York, to shoot commercials with the wrestlers. “André was bigger than life,” Weiss says. “They were all very lovely. We talked mostly about how they got into the wrestling business.” LJN also made sure the wrestlers made appearances at the annual Toy Fair in New York.

Unlike He-Man and G.I. Joe, who could bend at the joints and were made of lightweight plastic, the WWF figures were solid molded rubber. As a projectile launched at a sibling’s head, they hurt. But they were also tough enough to sustain themselves through cage matches, battle royales, and other clashes. Some figures based on massive wrestlers like King Kong Bundy were essentially blobs of heavy rubber that would have increased shipping costs. “They came in on boats from Hong Kong,” Weiss says.

By December 1985, LJN had sold 4 to 5 million of the figures, which retailed for $6 to $10 apiece. Second-quarter earnings for the company ballooned from $8.3 million in 1985 to $55.7 million in 1986, erasing the bad taste left over from the Dune deal and helping make LJN a major player in the action figure aisles, with some additional help from their Thundercats line.

Kid-sized wrestling belts, exercise kits, tag team sets, thumb wrestlers, and other products followed. Roughly 1.4 million wrestling rings—which were later recalled in 1991 due to having pointed posts that could impale children—were sold. Bendies were smaller, posable versions of the larger figures; LJN also made a 16-inch Hogan doll that had a rip-away shirt. And it wasn’t just McMahon who enjoyed the profits. In a 1986 interview with United Press International, “Macho Man” Randy Savage estimated a third of his income came from merchandising revenue.

The line continued through 1989, at which point LJN decided to make a move into the burgeoning video game industry and passed on renewing their license with the WWF. It would eventually go through a succession of licensees including Hasbro, JAKKS Pacific (which was owned by Jack Friedman), and Mattel, where it currently resides. Though the newer toys have multiple points of articulation for better simulated grappling, kids who grew up with the rubber toys prize the unopened products that can sell for hundreds of dollars on eBay.

Wrestling hasn't left Weiss’s attention, either. Now a licensing and marketing executive for Accessory Innovations, she handles licensing deals for backpacks. “We have 40 different licenses, and wrestling is one of them,” she says. “So I’m still doing it.”