Dolphins are sometimes called Naia or Nu'ao (whistling multitudes) 
 
1x3in Laser Cut Birch Koa Keychain (water resistant)
 
Being a wood product there will be natural variation in shade and gradient with striations or other natural markings of the wood. 
 
Koa has a wide range of colors, variation and chatoyancy ranging from $45-200/bdft. When the tree starts buckling under it's own weight we get visual undulation called "chatoyancy" from the compressed cellular structures. It's color runs the full range from chocolate through the red tones, sometimes with yellow streaks. The newest growth can be a light white color and often is overlooked. Our finishing process restructures and strengthens the otherwise soft white grain for your enjoyment.