***UPDATE***

I Designed a PCB to go with it, makes it easier to build and a lot sleeker looking on the inside. You will need to print a new Body and Tray (the ones on the GitHub) for it all to fit properly. I switched programming languages to Circuitpython so I could use their I2S audio library, so sound is now possible. It's set to play a sound when the button is pressed

I wanted to build a portal gun from Rick and Morty, but I wasn't really happy with any of the files I found online. So I decided to have a go at making my own. And here it is!

I printed the body of the portal gun in two parts out of PLA on my Ender 3 V2, as well as the tray that slides in the front.

The LED lenses and the plasma tube were printed in clear resin on my Photon mono X.

This project needed a lot of filling, sanding and painting, so be prepared!

For best results on the plasma tube I recommend sanding your way up to a very high grit and then applying a couple coats of clear coat.

I used hot glue to create the plasma ball effect/

The electronics I use are as follows:
Raspberry Pi Pico (specifically the Pico LiPo from Pimoroni)
5 green 5mm LEDs
A rechargeable 500mah LiPo battery (I was originally going to get a bigger one but couldn't source it in the end)
Fermion: EC11 Rotary Encoder Module (Breakout) (cut down)
Adafruit 0.56" 4-Digit 7-Segment Display - w/ I2C Backpack QT - Red   (Assembled)
The materials I used are as follows:
PLA
Clear UV resin
E-tech advanced body filler
PlastiKote Matte & Glossy spray paint
Rustoleum Crystal clear glossy clear-coat
Hot Glue (for plasma ball)
Various grits of sandpaper up to 2500grit 

Badly written code here (Micropython):  https://github.com/Bannerz/RMPicoPortalGun

Video here: https://www.youtube.com/watch?v=tSseKFKc9i8

Print Settings: 

PLA Settings;
Temp: 210c
Bed Temp: 65c
Wall Count: 5
Supports: Yes - Linear
Infill: 20%
Support density: 5%
Adhesion: Brim (not necessary) 
Total Time (all PLA prints):  ~50 hours

Resin;
Layer Height: 0.05mm
Bottom Layer Count: 8
Exposure Time: 2.8s
Bottom Exposure Time: 45s
Lift Distance: 8mm
List Speed: 180mm/min
Retract Speed: 240mm/min
Total Time: ~4hours