I had a week before going to Berlin for Halloween. I really wanted to dress up as Rick, and I wanted to make the portal gun! I printed the 3D parts and I made the electronics inside.
I firstly wanted to put a battery and charge it, but I did not have enough time to order the components, so I made it with a switch and alkaline battery. The potentiometer was changing the value of the galaxy on the segment screen but the glue short-circuited it, so in the rush the only solution was to increment the value. The transparent plastic from the top is from a cream and the black potentiometer (I lost the 3D printed one and couldn't print another one) is a painted and glued bottle cap.