I wonder if anybody makes these type for ATV's?

http://www.chonday.com/Videos/trugotakl4

Didn't give them a full look but it seems like if they came in smaller size  they might work as is. I like the idea.

Im sure they would work...but im not a fan of that style of track.  It puts the machine up to high and can make it very tippy.  Dedicated tracks are much better for that.  The only reason that these are a good option for cars/trucks/jeeps or whatever is because you have to drive those on the street also and these tracks install faster.

Little work getting the initial setup but would be nice to have a "drive on" set of tracks! 

I have seen in the past guys cutting a sled track to fit around there tires. Just deflate the tire a bit, slip them on, then reinflate the tire. I haven't got ahold of a paddle track so haven't tried it yet. Looks like they would throw snow pretty good.