Colour can

[Raghav]

Is this a sold out effect or something? Seen it in many videos.

 

[Josh Burch]

I'm fairly certain that this was created by Kyle Marlett for Justin Flom. I'm not 100% positive though. I'm pretty certain that these are all rip offs.

The principal can be learned in this video with chap stick. Daniel Garcia teaches it in his Murphy's Magic Tuesday night hangout.