I can't be the only person giddy at the sight of Vittumainen haamu, the adorable black kitty who's been hanging out in Edgeville. In RS2, a kitten was rewarded for completing the Gertrude's Cat quest, and it was able to follow players around. While it had no practical function, the pet added a spark of joy and unparalleled level of cuteness. Since mods have already created a black cat sprite, I propose the implemented possibility of obtaining our own cats.
Like in RS2, the cats would follow players around after the completion of Gertrude's Cat, or an event/mini-quest. They would serve only aesthetic purposes, following behind players. If the player wants to keep the cat but prevent it from following them or just give the pet a little break, they would pick it up, at which time it would take up an inventory slot as a cat (like the current kitten from Gertrude's Cat). The cats would neither help fight nor aggro monsters. Just tag along as a familiar.
Wondering what others think of this idea?