So, first of all, you must get a pack of gum and eat it all up!
Step 2
Then, you cover it up with black construction paper.
Step 3
You can now make the little piece for the middle from white paper. Once made, glue/ tape it to the gum pack.
Step 4
After that, tape a string to the back, or, if you have the opening, you can put the string through there like i did! Here's the piano one I made. Enjoy!