2-dimethylaminopyrazine looks very intresting from clandestine point of view, check out this patent: Patent US3249503 (http://l2.espacenet.com/dips/viewer?PN=US3249503&CY=gb&LG=en&DB=EPD)
Needless to say, it's easier to prepare than a portion of noodles...
EDIT: LOL!
For the preparation of its precursor (2-chloropyrazine) check out this JACS article [JACS 74, 1580 (1952)]: http://pharmacist8.tripod.com/chloropyrazines.pdf (http://pharmacist8.tripod.com/chloropyrazines.pdf)
I hope that I used TFSE hard enough this time, otherwise I'm waiting for a crude remark by Rhodi