Since the only thing I dislike about drawing with a mouse is The 
Difficulty copying. I decided to make a drawing aid which I call the 
Mousterpiece.  It it a frame work of wood to hold the mouse steady and 
a side mounted cross hair to aid in tracing.

 Step 1:CREATE CROSSHAIR
         Using an exacto-knife I cut the center out of a 7-up cap and 
         notched it on both sides vertically and horizontally. using 
         Black thread Place the crosshairs and glue them down using
         crazy glue.

  Step 2:MAKE MOUSEPEN
         Take your wood and make a small enclosure for you mouse and
         Mount the mouse and cross hair in the following configuration

                *------------------*
                *    I   I         *
                *    +   I         *
                *    I   I         *
                *------------------*
                     A       B
 
          The crosshair is mounted a portion A by two vertical wood struts
          an the mouse gets placed in portion B.

  STEP 3:BUILDING FRAME
         The rest of the framework is nested to move smoothly like this,

            ----------------------------------
            I      I         I               I
            I      I---------I               I
            I      I +  I    I               I
            I      I---------I               I
            I      I         I               I
            ----------------------------------
          The center with the crosshair moves up and down in the inner
          square frame and the inner square moves side to side in the 
          outer square frame.
             So you are able to have the mouse steady and even as you
          trace the drawing using the croos hairs.
             Placing the paper underneath of the mousepen.
          Hope you enjoy this little project, Its inexpensive and works 
          enough for most line drawings.
            If you like the idea and are able to use it contributions can 
          sent to:
                    Carlos Gonzales
                    133 maple st
                    Henderson, Nevada 89015