"Cartoons" as drawings are not always "funny"!
these drawings (cartoons) are from some work I did for a client, developing a character for illustrations to be placed with the content of his thesis on his website:
First one, ink on illustration board, scanned into Photoshop:
This next one is just a straight "inversion" filter using Photoshop:
for this image I used the filter "diffuse" in Photoshop:
These ones were drawn with Speedball ink and brush, then scanned and filtered with "accented edges" in Photoshop: