Friday fun: If you liked the Spirograph, you'll love this

If you liked to play with a Spirograph when you were a kid, you'll love to play with String Spin from zefrank.com (there are too many toys there to play with! Thanks, I think, to Grass Shack Events & Media for a great source of endless time-wasters!)

Here's another one, this time with color to play with.

Another geeky math game:

Conway's Game of Life (two thumbs up on this one, even though I don't really understand why it does what it does. It's just cool.)

And for us old fogies, a Roman numeral calculator.

Back to work now.