For those of you that are familiar with MSN you'll probably also know about the included handwriting feature.
For those of you not in the know here's a screenshot of the tools it gives you to work with:
The most annoying thing about this is that it doesn't have any way to zoom. The colour palette is basic, but it's still workable.
If you have MSN and handwriting then maybe you could post some stuff that you've drawn?
You can click the image after you've sent it, then right click it, copy and paste it into another program to save it.
Here's my drawing from earlier:
