When Bobby Sherman's two kids go to Disneyland in Anaheim, Calif., they walk in with a shout of recognition: "There's our street!" Except that everything on this Main Street—emporium, arcade and cinema—is five times bigger than the version they have watched grow up in their own backyard, 45 miles away in the San Fernando Valley.

Sherman is the "Bubble Gum Kid" of the early '70s whose 11 gold records, including Easy Come, Easy Go and Julie, Do Ya Love Me?, racked up some $20 million in sales. Today Sherman makes commercial films, runs a deluxe airplane charter service and rents his own recording studio to other performers. (He's also cutting a new record himself.) The only hangover from his years as a teenage idol, he jokes, was that "the fan magazines for so long insisted I be younger than my age that it was a jolt to turn 34."

Not all the kid has gone out of Bobby Sherman. A model builder as a boy, he was inspired by the arrival of two sons, Christopher and Tyler, now 4 and 3, to create something "kids would really enjoy." He chose Main Street, exhaustively photographed the original and eventually persuaded Disneyland to give him a set of plans. The project has taken Sherman two and a half years and $15,000 to build.

One of the first to see it was Walt Disney's daughter, Diane Disney Miller, who exclaimed, "My father would have fallen in love with this." So has everyone else, except maybe Bobby's wife, Patti, who had to live through the hammering. "At one point," Bobby recalls, "she said, 'If you don't finish it, I'll kill you.' "