Sigh...I know this is probably going to incite some investigation by NCEES or massive pencil buying scheme, but here it goes anyway...
They haven't changed the actual design or look of the pencils in quite a few administrations. Seems to me that the security of not bringing in your own pencils is now null and void by the fact that someone could legitimately own before the test the exact pencil they are using...and then put whatever cheating device in it. Really, we've only seen blue, red, black with upper or lower case. Not that hard to have to repeat.
Just a thought. It goes back to the comparison to TSA...is it actual security, or just a pain?