ZOMBIE ALERT THING!
thingiverse
Check out these two Thingiverse designs - http://www.thingiverse.com/thing:243178 and http://www.thingiverse.com/thing:243268. The large size might make it a bit tricky to fit on your build plate, so plan accordingly!
Download Model from thingiverse
With this file you will be able to print ZOMBIE ALERT THING! with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on ZOMBIE ALERT THING!.