Stranger Things birthday party pack Get ready to transport your party guests to the Upside Down with this Stranger Things Party Pack, complete with themed balloons. Whether you're celebrating a birthday or just having a binge-watch party, this pack has everything you need to create a mysterious and spooky atmosphere. Featuring iconic imagery and references from the hit Netflix series, this pack is sure to please fans of all ages. Included in the pack are a variety of party decorations, all with a Stranger Things twist. And of course, no party is complete without balloons - these themed balloons will add a touch of otherworldly charm to your celebration.