I have a quick look at Outer, a free VST.

Its a bit pants.

Get it here (if you really want): http://www.vst4free.com/free_vst.php?plugin=Outer&id=2712
Guide to installing Free VST in FL Studio: https://www.youtube.com/watch?v=89SB9BdnFpI
Picture of a rabbit: http://prntscr.com/irnlre
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