Great American Derby Ducks: Glow Ducks The Glow in the Dark Derby Duck is also responsible for the recent groundswell of charity, as some very large Charity Duck Derbys can bring over 30,000 rubber ducks to a race where one lucky duck purchaser would win the prize. But there's also the Beanie Babie fervor over the Derby Duck as it comes into its own in the world of collectibles. We specialize in the timely delivery of large orders. Volume Discounts. Please contact us with your needs of the event. Great American Derby Ducks