Mega Marbles has created several lines of marbles, which are unique in that they are grouped in nets according to theme. For example, if a kid has an interest in sharks, he might buy one of the shark themed nets; all of the marbles therein will be vividly white and blue, like the color of sharks. The marble nets are packaged with a colorful header cards and there are over sixty styles to suit a wide variety of childrenīs interests. New marbles include Giraffe, Gazelle, Venus, Earth, Flamingo and Tree Frog.