I have a Voodoo Titanium shift knob and was wondering if anyone knows how to polish and/or anodize it?

 

pretty sure that ti and aluminum are similar anodizing processes ...
here it is (and aluminum link is there too):

http://mrtitanium.com/anodizing.html

and here is one with pics- and using knives:

http://howellknives.com/index.php?BODY=anodize_titanium

do you really want to polish it (does it have stains)?
or do you want to protect it (if so, most syntethics are good choices- such as zaino- and a whole lot easier and safer than anodizing!!)