G'day Whittling and everyone
Whittling, I have learned my lesson with dual core balls. They can stay in the practice bag or bin. Some of the balls I have removed the covers on that are blue inside which you may wish to target for your blue moon balls are:
DDH Extra Soft (light blue)
Dunlop DDH (light blue + other colours)
Dunlop Loco Tres (blue)
Executive Titanium Plus (blue)
hotdot (light blue)
maxfli Revolution (light blue)
maxfli XS Distance (light blue)
Molitor 332 Spalding (light blue)
Molitor Spalding ( blue)
pinnacle exception 2 (sort of turquoisey blue with spots)
pinnacle long drive (sort of dark blue with spots)
precept 33 (blue)
precept 33 Laddie (blue )
precept 00 (blue)
precept 22 Laddie (blue + other colours)topflite ESP (blue)
topflite XL Performance 90 (blue)
topflite XL 3000 super long (blue with flecks)
wilson staff DX2 (blue)
yellow golf-range ball (blue)
Good luck in your search
Cheers
Grant