A couple of users on the Vintage Computer Forum have decided to celebrate the Commodore PET by launching an event called PET Alive! (curiously just like this forum category happens to be called)
It will include anything from just arranging your PET to look nice, to running some software or even perform some hardware breakthroughs.
http://www.vintage-computer.com/vcforum/showthread.php?t=19926 (http://www.vintage-computer.com/vcforum/showthread.php?t=19926)
I suppose you would need to be a member of that forum to post, but several of us probably already are.
In case anyone forgot to stop by, the event is now running:
http://www.vintage-computer.com/vcforum/showthread.php?t=20275 (http://www.vintage-computer.com/vcforum/showthread.php?t=20275)
There is also a special "hospital" thread for repairs:
http://www.vintage-computer.com/vcforum/showthread.php?t=20276 (http://www.vintage-computer.com/vcforum/showthread.php?t=20276-PET-Alive!-Pet-Hospital)