Add Shrek The Musical to the list of Things for Kids to Do in NY. Shrek is a Broadway Show based on a combination of the film and William Steig’s book, Shrek!. This cute musical opened in December and has been a hot Broadway ticket ever since. Never fear! We got a deal on tickets on a Tuesday ($89). Sometimes the tickets can be quite reasonable on a Sunday afternoon. The rates for low end seats can be close to $200 if you go for the popular Saturday Matinee. It pays to shop the price.