The 7 th Heaven alum shared “naughty” new pictures of her family’s Elf on the Shelf shenanigans ... a snap of an elf hiding in a toaster with a sign reading, “It’s toasty in here ...

Some of the hilarious suggestions include popping the elves in the toaster, having them bathe ... perfect for coming up with those ingenious Elf on the Shelf set-ups. Transform everyday mirrors ...

Jessica Biel upped her Christmas game with some next-level Elf on the Shelf setups this holiday season ... an elf can be seen peeking out from a toaster with a sign reading, "It's toasty in ...