I'm a sucker for all things miniaturized and oversized. So I'm especially fond of JAAAHWS, a big version of those classic novelty vampire fangs. Use them to build your own maneating flytrap (above) or put the fangs on your noggin', like so... (adults can wear them, too)
Interesting tidbit: JAAAHWS were created by Brian Morishita who also works with Rick Baker at Cinovation Studios, which means he has two super cool jobs.
Available in white ($20) and glow-in-the-dark ($28 - limited).