Oliver, what is the white bass in the middle of the photo you posted? that is wild!
 
drr

David,
this is the Peter Cook Lightning Bolt bass.
Buildt by english luthier Peter Cook after Johns idea on the cover of Who by Numbers. Currently beeing re-buildt by Ed Roman for the John Entwistle Foundation.
Below pic of the original bass, courtesy RSG.
Oliver (Spyderman)

Thanks, Oliver. Cool bass. I really dig the headstock!