I stopped at the TechShop this weekend and I picked up an unwelcome parasite!
You can do it too. Just download 'fsm noodles.cdr', head to the TechShop and with about $15 in materials and the vinyl cutter, you can make your own!
I think i need to go back and make some more noodles though :-)
Note: Make your noodles about 20% longer than you think they should be so you can run right off the edge of the car so it really appears to come from underneath. You can see on a couple of mine, they don't quite reach the bottom, wrecking the illusion of noodles coming from below.