On shelves at a Humanetics facility in Huron, Ohio, skulls stare from their eyeless sockets, shiny and silver. Around a corner, a rack is filled with squishy, peach-toned arms, legs, torsos and butts.

Fans can breathe a sigh of relief after Jake Paul’s statement. Many thought the worst when Paul announced a “major update” just over a week out from his return to the boxing ring. The polarizing ...