You now have a 3D origami mouse that can sit on its own. Other "Mouse" Options
Place the paper with the colored side down (if using colored paper). Fold the paper in half diagonally to form a triangle, then unfold to reveal a center crease.
Based on your request for "mouse_instructions.7z" and "provide an paper," Materials Needed
If you meant a different kind of "paper" or instructions, could you please clarify:
A 15x15 cm (6x6 inch) sheet is standard, but any size works. Optional: A pen to draw eyes on the finished mouse. Step-by-Step Folding Instructions