I've made one.
Yarr, here we go! Stats from PVKSTATS.CO.UK in a signature!
Just visit http://jbnc.net/stats/
Before everyone starts putting in their steamid and creating signatures, please keep in mind that I pay for that hosting's bandwidth so if anyone wants to host the script, contact me.
Also, I know it ain't that pretty yet, but I focused on the functionality more than the design.. If anyone wants to contribute by designing a better background, suggest fonts, etc.. Feel free to do so.
A preview of the "Default" style can be seen in my signature.
Signature Coming Soon.