For my job, I came up with the idea of doing some floor art to promote Mass Effect 3. A co-worker of mine did the same thing for a few other games before, so I decided it was my time to try it out! Unfortunately all I had was masking tape to work with, but I think it came out pretty good. All in all, it was a blast doing it!
Good luck getting that off, we tried doing that at our store and it was impossible to get rid of. Of course because I had to show up everyone by making the impossible, possible, I had to take it all off ;-; maybe I can find less strong tape because this is really cool looking!
it's double sided tape, and while working on it, it surprisingly came off the carpet pretty well. We've done the same thing before too with no problems cleaning it up, so I wasn't worried.