I’ve got more than one younger cousin, who always made it a habit to chew on their pens while doing homework. And as I saw this as annoying, I’m sure Dave Hakkens would see this habit as money in his pocket. When looking at pens, Hakkens noticed that you only use the ink, the other stuff is just there to hold filling more comfortable, and proposed the question “Isn’t it possible to eat the whole cover?” That being his goal, he first gathered a collection of pens and looked what made them good to chew on.
With the information gathered, he made 3 different molds and started testing out different types of candy, the breaking point and which chew the best. When Hakkens found the shape and candy and made a final model in peppermint flavor. The candy which is used doesn’t stick on anything and doesn’t melt when it’s in your hands. (To get an idea: It has the same texture as candy bracelets.) The final product contains 22 pieces and is filled with edible ink. The only thing which isn’t edible is the small point where you write with. When finished you throw it away or put in in a new re-fill pen.