The makers of the movie District 9 created a printable PDF “Prawn” target. It can be downloaded here. Another reader turned it into an printer friendly black-and-white image (The below image is just a thumbnail).
It can be downloaded here.
While on the topic of District 9, a friend of mine put together this nifty photoshop which I think really captures the mood of the film …
Thanks to David for the target link, the anonymous reader for providing a printer friendly version and my friend for his photo(shop)
UPDATE:
Isaac just emailed me a PDF that is a vectorization of the above target. This means that the PDF can be scaled to any size without loss of quality. It can be downloaded here.
Thanks Isaac.