I recently boasted on Cake's blog that having sketched Garfield and Odie so often as I was learning to draw as a child, that, without actually having seen either character in years, I could probably draw a pretty mean copy just from memory. By "mean," I must have meant "cruel joke." Here is my 2 minute attempt. Many apologies to Jim Davis.
If you were artistically inclined as a child, the Sunday paper was always a good source of practice material. I remember recreating all kinds of comic strips, but Garfield was probably the first I perfected. Who did you draw as a child? Think you can still do it, without looking? Check out this site.