I haven't got any of those, but my spam folder has been having fun eating a bunch of messages like this one:

Code:
From: "Priest Barney" 
To: <>
Subject: (no subject)
Date: Mon, 17 May 2010 19:04:09 -0400
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01CAF5F3.BA9A4190"
X-Mailer: Microsoft Office Outlook, Build 11.0.6353
Thread-Index: Aca6Q7J9K8MYI4UL14U3P2OUQCD5LS==
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670
Message-ID: <01caf5f3$ba9a4190$0100007f@houston_jeri>


------=_NextPart_000_0006_01CAF5F3.BA9A4190
Content-Type: text/plain; charset="Windows-1252"
Content-Transfer-Encoding: 7bit

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 iploc11kjgma that is o9uhb1ften the passpo97art to361n3 success.  CALL US To3z7zstsmDAY AND GIVE Yob8UR Wo6kbayRK EXPERIENCE THE CHANCE To8rk EARN Yocpel3ndcU THE HIGHER CoxcjsnbMPENSATIocjwk02N Yoo6nU DESERVE!  Ring anytime
Meh. This message listed many addresses in the "To:" header that were people with accounts on the same domain as mine, so I'm guessing they're specifically directed at said domain. Still, it would flip any slightly good email spam detection system, so I have to wonder why they even send them, unless they're doing it just to do it.