Stumbled across these while finding the Surf Coasters stuff I posted elsewhere. The Beach Monster (different than Beach Monster by the Surf Coasters), I think it's the name of the band.
https://www.youtube.com/watch?v=thNYRw2l1Nc
More
https://www.youtube.com/watch?v=O1YnCW2KAis
Looks like there's several videos of them on youtube. Search away.