I started doing little upcycle products with my 3d printer to give new live to high quality products that are meant for one time usage. I liked the size of the true fruits bottles and decided to turn it into a little piggy bank for coins. I already filled it up once and carried the coins to the bank :) One thing that was difficult is the thread contact of the bottle. To get this printed without support took many itterations. I also designed some other add-ons for these bottles. check them out.