No toys under your Christmas tree this year? Treat yourself to...well...what can only be described as a virtual roller coaster snake. Sounds weird, but trust it's worth at least a few minutes of your time.

Your mouse steers the "snake," and it propells itself forward. Spirals take a little technical expertise, but anyone can make a loop. Got kids over? Sit them in front of this for a few while you grab yourself another eggnog.

You can play with it for free at: http://www.barcinski-jeanjean.com/entries/line3d/.

Merry Christmas.