Have you come across this channel yet? This channel has a HUGE amount of videos for interactive learning of repertoire or play-along sequences for the ukulele, recorder and body percussion.
The ukulele videos even have a section at the beginning to guide teachers and students to tune together and clear visual and aural cues to show when to start and stop playing.
Some videos include visuals coordinated to the rainbow colours of boomwackers, glockenspiels or keyboards. There are also a channels dedicated to rhythm reading, world music and setting up songs to play in an Orff arrangement.
Some pictures of the channel are below.
To access it, search ‘Visual Musical Minds’ on YouTube or go to: https://www.youtube.com/channel/UCjUxQg9cHiOYqaRdtZ6pfoQ
A snapshot of the ‘La Bamba’ play along video: