Feel like resurrecting Tupac in your own home? No problem. 

U.K.-based tech enthusiast Mrwhosetheboss posted a now-viral tutorial on YouTube that shows how to turn any smartphone into a hologram projector. The video was inspired by another, very similar YouTube tutorial by American Hacker teaching his viewers how to watch 3D videos without wearing designated glasses.

Here’s what you need: graph paper, a CD case (you’ll have to get rid of them one day), tape or super glue, a pen, scissors, a smartphone and a knife or glass cutter.

To build the projector, draw a small rhombus on the graph paper, use that template to cut out four rhombus shapes with the plastic from the CD case, tape the four plastic cut-outs together, place the 3D construction over your smartphone, load up a “hologram-specific video” (like this one), press play  — and voilà! A homemade hologram!

You can increase the size of projector’s rhombus teplate as much as you like, Mrwhosetheboss noted, as long as the projector fits atop your smartphone screen when you’re done.

SinceMrwhosetheboss posted the video less than two weeks ago, it’s garnered over 7 million views — and rightly so. It’s simply brilliant.

View it bigger, here: https://www.youtube.com/watch?v=7YWTtCsvgvg