I found Hula Hair Barbie and Splash 'n' Color Skipper (both 1996) at the flea market! Cleanup was tricky, Barbie's neck was damaged but I managed to fix the peg! Plus hair
Hawaiian Hula Dancing Barbie Doll Souvenir Toy - Walmart.com
Pink & Gold Hula Hair Barbie – ToysCentral - Europe
Hula Hair Barbie Doll, Fully Jointed | eBay
Hula Hair Barbie Doll 1996 17047 Vintage With All Original Accessories - Etsy