I'm sorry to do this to you guys because I'm sure there is a thread floating around somewhere already but I promise you I have searched extensively.
Where the heck do I purchase replacement shift bushings?  I can't find a part number or exact item description ANYWHERE.  Every single thread I've found online (and there have been lots) just says to use this as an opportunity to put in a short shifter.  I'd love to maybe someday but right now I just want to spend a few bucks on a piece of plastic and get my car working again 
 
Is there a universal bushing people use?  Are there brass bushing available for a bit more?
2002 Porsche Boxster
Little white plastic bushing that allows the shift lever to pivot left/right but locks it in place from moving up/down
Help this newbie!