• 1220 Fifth Ave at 103rd St., Open Daily 10am–6pm

    Birthday Parties

    Jenny Flax, creator and owner of Piece of Cake Parties, has over 15 years of experience in planning unique and clever parties for Manhattan’s most discriminating clients...our kids!

    Building on her years of developing hundreds of events for Toys "R" Us and FAO Schwarz and her extensive experience as a teacher at Manhattan's preeminent community music school, Jenny knows how to mix the key ingredients to make a truly memorable event. Piece of Cake Parties prides itself on exceptional creativity, impeccable attention to detail, and truly happy kids.

    Party Themes

    Taxis & Train Adventure 

    Whether you traveled uptown, downtown, or crosstown to get here, you've arrived at our terrific Taxis & Trains Adventure party. Complete with taxi magnet invitations, a NYC traffic obstacle course, a subway scavenger hunt, and a cool custom car craft, this birthday will be the express train to fun!

    My NYC Gallery Opening Gala 

    Your budding artist is having a birthday! What a great reason to celebrate with our exciting My NYC Gallery Opening Gala party. Complete with clever and crafty invitations, design-your-own-art supply box, colorful clay creations, and lots of hands-on fun, this birthday will be brimming with artistic style.

    Fabulous Fairy Tale Tea Party 

    Your little princess is having a birthday, and we are ready to celebrate with a Fabulous Fairy Tale Tea Party! Complete with make-your-own-castle coin banks, a funny dress-up relay obstacle course, and tea service with decorate-your-own "crumpets," this party will dazzle the kingdom. A fairy tale party fit for a princess!

    Super Skyscraper Caper 

    Your architect-in-training is having a birthday, and we've designed a fun Super Skyscraper Caper. Complete with create-your-own drafting notebooks, a tall tower building block challenge, a cup-stacking relay race, and NYC building bingo, this party will reach new heights of fun!

    Details & Contact

    Every 1.5-hour celebration includes the following for up to 20 children (more guests may be added for an additional cost):

    • Personalized invitations and individual email box with RSVP tracking (if desired)
    • Personalized birthday mural
    • Custom craft made at the party (doubles as party favor!)
    • All activities led by experienced Piece of Cake team
    • NY Pizza & Juice Boxes
    • Sheet cake or cupcakes made by Sweet Amanda Leigh’s cakes
    • Coordinating Paper Goods (cups, napkins, plates, tablecloths)
    • Personalized party favor bags to hold craft and another item chosen from an assortment
    • Balloon bunches (4) that match the theme and colors of the party
    • On-site event management (set up, party time, and clean up) by Piece of Cake team
    • A one-year Family Membership to the Museum of the City of New York
    • A $20 gift certificate to the Museum Store for the birthday boy or girl!

    To book a party or for more information, please call Jenny Flax, Piece of Cake Parties, at 646.843.9922 or the Museum of the City of New York at 917.492.3327, or email

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