Usually, most of the designer s and lap-top users have there owned wireless mouse. all these MOUSE are dumped into the laptop bag which will have a charger, wires and other accessories. All these accessories may damage the mouse which will diminish the life of the mouse and the person hs to buy a new one. To avoid damage to the mouse from all these I have designed a simple mouse cover which will be the size of the mouse and fit in the laptop bag as usual mouse use to be fitted in.  This has two part one is base and other is cover. You can go through the images to understand the design.