Scratchy nylon princess gown. Check!

Headache-inducing plastic tiara. Check!

My 6-year-old daughter, Daisy, obsessively planned her Queen Elsa outfit for Disney on Ice’s “Frozen” for weeks.

Only when we were in our seats did she realize Mommy forgot one key detail: the waist-length, braided platinum hair extension sported by the little girl in front of us.

If looks could kill, Daisy would be serving 15 years to life.

Wardrobe jealousies aside, swarms of mini-Elsas clearly had the time of their lives watching the ice-skating version of Disney’s $1.3 billion grossing film.

I’m not sure the same could be said of their alternately bemused and desperate parents, especially the dads. (My husband disappeared for increasingly long intervals to the bathroom, located just beside the bar. By the second half, he motioned as if to gnaw off his arm.)

Having watched the film exactly 74 times, I had my own coping strategy, which was in the spirit of “If you can’t beat ’em, join ’em.”

So I out-hollered most of the 3- to 9-year-olds when haughty Elsa and her eager-to-please sister Anna finally took to the ice after a crowd-pleasing introduction filled with other Disney characters, such as Donald Duck, Nemo and Woody, the “Toy Story” cowboy.

It’s assumed that the audience is already familiar with the plot, so the three or so people in the crowd who hadn’t seen the film must have been scratching their heads.

Large chunks of the story were cut, including the scene where the siblings’ parents are lost at sea, and the condensed action moves along at lightning speed. (“Small mercy!” my husband muttered.) And since the skaters lip-sync to the original soundtrack, there’s no panting between stunts.

Curiously, the performers’ names weren’t even listed in the program. Apparently, the real stars of the show are the eye-popping pyrotechnics.

Sven, the giant, lovable reindeer — skated by two people — is a triumph of engineering. Marshmallow, Elsa’s abominable snowman bodyguard, scares the living daylights out of the younger kids with his colossal billowy form and dry-ice breath.

And the costumes are worthy of a Las Vegas revue, particularly the silk chiffon number Elsa wears when belting out “Let It Go,” all swirly skirts flying in the breeze.

Let’s hope Daisy doesn’t get any ideas.

“Disney on Ice Presents Frozen”

Barclays Center, 620 Atlantic Ave., Brooklyn. 120 minutes, one intermission. Through Sunday. Tickets $25 and up.

