|All you need:|
7 big popsicle sticks
|How to do:
Copy the pattern to wood and saw it. Polish and paint it. Assign the notes with funliner to the wood. Cut one end of 6 popsicle sticks and short them in different length. Paint all. Paint the 7th popsicle stick in the same color as the piano. Glue popsicle with the straight end to the piano and fix them with the 7th popsicle stick.
Note: to get a loud sound, lay the piano on a table or a box