Edible Pens by Dave Hakkens.
A lot of us chew on our pens constantly, Im sure many will appreciate this!
"The candy which is used doesn’t stick on anything and doesn't melt when it's in your hans. (To get an idea: It has the same texture as candy bracelets.)It 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."