If you grow tired of playing ukulele on the western scales, today is your chance to discover the Japanese Yo scale and on the Indian C major scale.
The Japanese Yo scale is a pentatonic scale using 5 notes instead of the 7 which are commonly used in western scales. Besides, the Yo scale does not contain semitones. You can read explanations about the Japanese Yo scale on Wikipedia.
Listen to Ken Middleton improvising some traditional Japanese folk music on the Yo scale on an Ohana TK-35CG tenor ukulele.
If you are into music theory and would like to read more about the various Japanese scales, this post for guitar players might interest you.
Here is another improvisation, on the C major Indian scale this time by tittlescwats11.