Now that the keyboard & mouse is drying, grab some twist ties and take care of the cabling. If you twist the two cables a little bit and then zip-tie...
Step 3: Create JB Weld tools & mix JB Weld
I didn't want to try to find something to stir up and apply the JB Weld, so I cut up the box that the mouse came in and made some stirring utensils. They work really well! I recommend making a couple of them, in case one loses its structural integrity during the process.
Once your tools are finished, use the plastic mouse shell that came in the packaging as a good place to put your JB Weld / epoxy, and mix up a small batch!