Today we picked up a Spirograph on sale at Target.
I had one when I was a kid and spent many afternoons using it to make all kinds of neat patterns. Mine had ball point pens, but this one came with felt pens.
I played with it for a bit, and let me tell you, it can be just as frustrating as a big kid as it was when you were a little kid.
I didn't really like the felt pen because of the blobbing and bleed through that happens when you get stuck. Pen or pencil was much better.
Still fun to play with, and I find the patterns you can create just as fascinating now as when I was a kid.