If you are going for G4 version of her I would say maybe: Lapis Sapphire and Tea Rose? I know Saply did a little filly of Bon Bon hopefully she chimes in. Not sure on the blue though :\
I own that FIlly! I think she used After Midnight and Rasperry Sorbet.
I just made a Bonbon myself with Lapis Sapphire and Pink Sugar, and the pink is a bit too light though, but it's all I had.
Literally finished her 20 minutes ago.
EIther Lapis Sapphire or After Midnight work for the blue, dunno bout the pink.