Reader Neb hips us to this Craigslist post on the subject

I was at the Laney College flea market yesterday, and there were many, many Brooks saddles to be had, black & brown, sprung & unsprung, most in great shape, and most with the post still attached. Of course, the bikes were no longer attached, and the sellers did not appear to be avid cyclists. I asked a couple sellers and the price seems to be around $50-60.

This seems to an industry in bloom - Invest in a saddle lock, but if and when your saddle is stolen, you'll know where to find it!  

Coincidentally, my buddy Ben, he of getting-his-bike-stripped-outside-of-Doc's-Clock-then-losing-it-off-his-bike-rack fame, had two, that's right, TWO Brooks saddles stolen last month.  He built the bike up on Christmas Eve, taking all the usual precautions (chaining the saddle to the frame and wrapping the chain in a tube).  Yet, he still had his new saddle stolen 36 hours later while his bike was parked on Market outside the Westfield.  His conclusion was to buy a third, crappier saddle and take it with him every time he parked his bike.  My conclusion was that fate intended for him to be a rollerblader.

The picture above was part of the chain-breaker that the thief left at the scene of the crime, suggesting our city's crackheads have caught up to our anti-theft tricks.  I guess all that's left to do is either outfit your bike with shitty, worthless parts or, if you really want to irritate yourself, stuffing all your bolts with tinfoil and hot wax.