The Haunted Giftbox

Be careful not to open the wrong present, or you just might lose a hand! This box appears to be a normal gift at first, but when you open the lid, sharp teeth become visible, and a forked tongue pops out. This somewhat-mimic-inspired build is composed of a monochrome exterior, as well as Technic elements to make the tongue move.

Just be careful not to leave it near anything edible...