Spam Verification I Saw Today

[proprod]

I saw this on a contact form today. Thought it was pretty cool:

[David]

Nice I like it. I assume there are different image sets.

[proprod]

Yes, probably. I didn't think ahead enough to bookmark it to look at later time to see if they rotated.

[Lazer558]

Could it be the S3Capcha JQuery Plugin at serie3.info/s3capcha/ ?
Mike