We love this project! It’s the perfect prop to complete any Rick costume. From instructables user korv:

I decided to make a prop from Rick and Morty after it very quickly became my favorite on-going tv show. In case you don’t know, Rick and Morty is a great science fiction animated show. It follows Rick, the show’s resident super-genius, and Morty, who is Rick’s less-than-brilliant grandson/sidekick/decoy. Rick’s interdimensional portal gun allows them to travel pretty much anywhere the shows ridiculous plot needs them to be. It’s a fun show and owning a portal gun is a fun way to celebrate the show as well.

Full instructable

HAPPY HALLOWEEN! Every day this month we’ll be bringing you ideas and projects for an Electronic Halloween! Expect wearables, hacks & mods, costumes and more here on the Adafruit blog! Working on a project for Halloween this year? Share it with us on Google+, in the comments below, the Adafruit forums, Facebook, or Twitter— we’d love to see what you’re up to and share it with the world (tag your posts #ElectronicHalloween). You can also send us a blog tip! Tune in to our live shows, Wearable Electronics with Becky Stern, 3D hangouts with Noe and Pedro, and Ask an Engineer, featuring store discount codes, ideas for projects, costumes, decorations, and more!