Star Color Pen

Star Color Pen (スターカラーペン) are the main collectable items that appear in Star☆Twinkle Pretty Cure. They are used to transform and perform attacks. A pen appears before those they deem worthy of the Pretty Cure powers if they emit a strong emotion.

There are also 12 different pens known as the Princess Star Color Pens (プリンセススターカラーペン), that each represents a Star Princess of the 12 zodiac signs, with each pen holding a mysterious power.

In the anime
When inserted into the Star Color Pendant, they can be used for the Pretty Cure to transform and use their attacks. In episode 6, it is shown that Aiwarn possesses a darker Star Color Pen named the Dark Pen that allows her to summon a Nottoriga. In episode 7, it is shown that they can function like actual pens, as Hikaru uses hers to draw a design for Lala's rocket.

As toys
When set into the Star Color Pendant toy, the Star Color Pens each unlock different voice samples. Used with the Twinkle Book, they unlock a message from the Cures or a new constellation.

When turned into a "Dark Pen"
When turned into a dark pen,by Aiwarn, it can be used to summon a Notrigga by taking ones’ imagination. As seen in STPC11 if more negative energy is used more imaginations can be stolen to create a stronger Notrigga When turned into a dark pen,by Aiwarn, it can be used to summon a Notrigga by taking ones’ imagination. As seen in STPC11 if more negative energy is used more imaginations can be stolen to create a stronger Notrigga

Appearance
Every Star Color Pen has a similar base design. It has a white section which also has a colored section representing the theme color of its respective user. It shapes into white wings at the top with a star in the middle that takes the color of its respective user. Inserted at the very head of the pens, is a white feather which has 5 colored stars within it: pink, teal, blue, yellow and purple. The Princess Star Color Pens are very similar in design but at the top, the feather is replaced with an image of the Star Princess it represents within a star, which is held in place by a zodiac symbol that the pen represents. If possessed by Aiwarn, the pen darkens and the image of the Star Princess is removed.