Those are Canadian Road-Hockey balls, just keeping crap out of the intakes while I wait for some filters to arrive.
The Audi thread is over on Motorgeek:
http://www.motorgeek.com/viewtopic.php?f=6&t=47160 It does need a bit of updating, the motor is now in, but I pushed the car away and started working on the bug. Back at it yesterday, stripped the moldy interior out of the parts car (yuck!) and will be working on it all weekend.
-Dave