"Design something related to customizing a product. It could be a custom t-shirt, shoes, etc."

» I'm currently looking for a bike myself so this challenge was fun to do! It's always easy to design something you need because you know exactly what you want. I customized my second choice, just to see what it looks like. I actually want a black bike with brown wheels. 

The active color is radiant and got a tip tool above the right color, that way the user knows what is being customized. All other choices are a bigger round than the other options. And you can either checkout and buy your customized bike, or share it with others or yourself. Easy does it!