3. The popular lollipop brand Chupa Chups is known not only for its delicious candy but also for that weird hole at the top of the stick. Although many thought it was for children to whistle through or to prevent choking hazards, they are actually created to stop the candy from being pulled out. This makes the candy harder to swallow by accident. In the production phase, and while the candy is still in liquid form, the hollow stick is inserted into the liquid so that when it hardens, it does so through the hole first to prevent the candy from falling out.