This is a list of all recommended characters that are different versions of Pen.
Baby Pen is a recommended character that appeared in Episode 17. It is a baby version of Pen wearing a diaper. It was recommended by simondomino.
Broken Pen was in BFDIA 4. It was recommended by redking632. It was placed 16th out of all Top 25 characters. In the episode, it got hit by the tip of the Eiffel Tower, unintentionally by Pin.
Prinly is a character recommended by aristagirlz in Don't Pierce My Flesh. It is a purple Pen.