Get to these shows before they close in January

The curtain is falling on some big-name shows next month.

The shadow puppet romp “Swamp Juice” by Jeff Achtem is ending its run at the Barrow Street Theatre Jan. 4. But if you want to know how the trash-inspired figures were created, Achtem is offering his last post-show starter workshop on Dec. 27 after the 11 a.m. performance.

The Rockettes will do their last line kick as Santa’s elves and more in their annual “Christmas Spectacular” show at Radio City on Dec. 31.

Rodgers & Hammerstein’s “Cinderella” at Broadway Theatre will turn into a pumpkin on Jan. 3

Get your happy thoughts together for the final showtimes of “A Particle of Dread (Oedipus Variations)” by Sam Shepard. This modern-day take on “Oedipus Rex” is playing at the Alice Griffin Jewel Box Theatre until Jan. 4.

“Pippin,” the story of a young prince on an existential quest, will close on Jan. 4 at the Music Box Theatre.

The true story of a Greenwich Village jazz club, “Cafe Society Swing,” will end its run at 59E59 Theaters on Jan. 4.

The Oscar, Olivier, Grammy and Tony award-winning “Once” will exit the Bernard B. Jacobs Theatre on Jan. 4

Tom Stoppard’s “The Real Thing,” which stars Ewan McGregor as a playwright caught between his unhappy marriage and a passionate affair, unsure of which one is real, will end its run at the American Airlines Theatre on Jan. 4.

Catch Michael Cera’s lauded performance in “This Is Our Youth,” a comedy about three young people making their way in 1982 New York City, at the Cort Theatre before it ends Jan. 4.

The high-tech magic show “The Illusionists: Witness the Impossible” leaves Broadway’s Marriott Marquis Theatre for the road on Jan. 4.

If you’ve got relatives or friends in town, it’s not too late to learn the fine art of “How to Be a New Yorker” at Planet Hollywood Times Square through Jan. 3.

Famous twin sisters surrounded by fame and spectacle search for first love and acceptance across stages from vaudeville to Hollywood in the 1920s and ‘30s in “Side Show” at the St. James Theatre through Jan. 4