Find Pentatonic and Major Scales in all keys with this PDF file. Print it and cut it out to slide around and find scales and chords. Comes with basic and deluxe versions. The basic has pentatonic scales and the deluxe has major scales and blues scales.
Assembly video at:
https://youtu.be/Nm25079sEUQ
How it works video at:
https://youtu.be/qklF7YwSBcI