Create your own dip dyed shoes. You don't have to particularly use yellow dip-dye. I've tried this myself, and I dip-dyed my shoes blue and green instead. It really works! Make sure you have white shoes only, or else it won't work.
Meet the ELE SOLAR BIKE, which could run on electricity, power, or your own two legs! The solar panels within each wheel rotate 30 degrees to maximize recharging while the bike is parked. It's still in concept stage, but looks pretty cool to us!