Tack

Tack was a contestant on Object Land, but then he became a contestant in Object Madness.

Appearance
In Object Land, he is a pure recolor of Pin, just being blue instead of red, but when he became a contestant in Object Madness, he had a much smoother redesign.

Trivia

 * As seen in Object Land, Tack hates being reffered to as Pin.
 * According to the Object Land wiki page, Tack is a gary stu, but in Object Madness, he becomes more balanced and fleshed out.