I have been fiddling around with this design for quite a number of days, trying various folds in order to take advantage of duo colored paper and bring out a geometric design while I was at it. I came up with this design in the end and I am quite happy with the outcome.

This design of mine is folded using the traditional waterbomb base and has a pretty simple folding sequence. Since I used single side colored kami paper which is most commonly found, the color change at the center of each unit came about quite easily. I used 8 square sheets of single side colored kami paper measuring 3 inches each. The overall size of the completed model is approximately 4.5 inches in diameter.