Painting, drawing, crayoning, markering (I just made that word up)...it's always more fun when a child is involved, even when they purposefully color over a character. It adds character to the character, no?
Both Jingles and Shimp don't actually speak, Jingles makes literal jingles while Shimp,a shadow demon imp hybrid is mute.both are genderless,they both love fun and both of them love causing mischief.they mean no harm and just want to play especially Shimp since they are from Hell.