Had a few dual colored balls back in the early 80's. Red/White, Orange/White & Green/White. Not the greatest idea, I'll admit. The Green/White was lost right in the middle of the fairway when it rolled Green side up on it's first use. The Orange/White was lost in the autumn when, you guessed it, rolled orange side up in a field of maple autumn foliage. The Red and White one ended up on display as a reminder to not do anything that stupid again.