I once got rattle cans from the corner hardware store and also they are cheap to buy they contained so little that I ended up buying more and more. I guess for a bike I would have needed 10 cans. I paid 7 kuai so that would be 70 kuai.

and 10 different colors. that would be joseph and his multicolored dream bike

multicolored dream bike
That would be a nice option.
Would be a dazzeling Dazzer bike !