Anybody got any cool ideas for new Ghost Types they could make? Even "possessed object" ones are okay as long as there's a thematically spooky tie-in that justifies it. What concepts haven't they done yet?

>the skeleton ghost-whale yokai.
>ghost Lucario regional based more explicitly on Anubis
>white bedsheet ghost that evolves into the tatama mat yokai/monster under the bed
>any ghost/rock fossilmon that didn't get properly revived for some reason so it's partially undead
>ghost golbat regional with long tongue and no eyes, based more explicitly on vampires and receiving a split regional evo
>any kind of spider