From Homestar Runner Wiki
The old
Sketchbook (not to be confused with the
weekly feature by the same name) is found in the
Museum section of the Homestar website. It includes a set of thirteen pages of various early character sketches, some of which were rejected. They are accompanied by commentaries written by
Matt Chapman. He offered ten bucks to anyone who could identify all the rejected
Halloween costumes; thus far one of them is still a mystery to the wiki.