The Flushing school blasted for banning children who didn’t pay $10 for a playground fair put on a better carnival — free for all.

Gary Pincus, the owner of Send in the Clowns, who staged the first fair on May 21, donated the do-over event last week at PS 120.

He provided giant inflatable games, popcorn, a DJ — and a surprise visit by Mr. Met.

Other guests included Brooklyn Cyclones mascot “Sandy the Seagull,” and players Christian Montgomery and Nicco Blank. Businessman Daren Hornig provided Italian ices.

“The kids had a great time,” Pincus said. “Everyone can move forward now.”