Step 2: Dissect (hardware) Mouse Part 1
The mini travel mouse didn't come factory ready to get put inside of a taxidermied mouse. (What were they thinking?)
Thus, you'll need to take your mouse apart and see whats inside.
Take off the spring loaded cable retractor by taking out the screw and then pop the two halves apart with a screw driver.
Remove the little plastic nub that was on the wire so that the wire will thread smoothly through a hole in the (wetware) mouse.
Next, grab a marker and draw lines around all parts of the plastic mini mouse housing that aren't essential. We needed to slim our (hardware) mouse down to fit inside the (wetware) mouse. We used a rotary tool to remove sections from the front of the buttons and the rear sides so that the (hardware) mouse would fit between the (wetware) mouse's shoulders and hips.
Remove as much plastic as necessary to make your mice fit, but take care not to damage the circuit board. The pseudo-ergonomic styling is really for decoration- you can't make a little mouse like this ergonomic, so go ahead an trim it down to the size of the circuit board.
Make a new slot in the back of the (hardware) mouse for the cord- we need to relocate it to the back to fit with the (wetware) mouse tail.