[painter62]

if there is what is it?

[Joe]

Here is one:

http://www.pbnation.com/misc.php?action=rocker

A video in case you have not seen it:
http://gimmewar.hypermart.net/RockerElectro/rocker.WMV

And here is a thread about it:

http://www.pbnation.com/showthread.php?threadid=564

If you are interested in getting one, email me at joe@pbnation.com about it and say you are from pbnation.com. We can see what we can do, if you already have a cocker and would like the mod done to that, we could work something out there also.