Flexidraw 4.0 by Inkwell Systems is a graphics package that came with a LightPen for the Commodore 64.  

Quoted from the Flexidraw software packaging:

"FlexiDraw enables Commodore 64 users to create professional quality computer graphics with the ease of using pencil and paper. Adults and children can use FlexiDraw to produce simple free-hand sketches thru detailed technical drawings quickly and easily without prior computer experience."