Personally, I tend to see "mojo" as that je ne sais qoui feeling of not exactly being able to put your finger on it, but you know that there's something to it.
Pretty much says it ...
It's a term that has taken on a certain POP icon status.
In real terms it's not the object (instrument)... From Beale Street to Burbon Street is the cradle of the blues tradition so closely associated with MOJO. If you should be lucky enough to be on Beale and catch a street band fronted by drummer Big Jerry you will hear IT ... I mean the real deal ... and they use the cheapest instruments and amps you can imagine. So it's NOT the actual instrument, although it's true some instruments do have a cool vibe no doubt.
Now this bass "may" have something approaching MOJO ...
Painted by a the artist Dewsparkle, who spent many years in the New Orleans area before tranplanting to Memphis, it's covered in many Voodoo symbols and such and has a really cool vibe ... MOJO I dunno?
My Voodoo bass ...
... click thumbnail