Branding of ccTLDs is common. .tv and .me are 2 good examples of ccTLDs branded for other usages.
Category-killers are rare and sell for a pretty decent sum. A few sales, according to
www.dnsalesprice.com :
Pussy cc $500 Aug 08 Moniker/Internext 1 5 N N
http://Pussy.cc Moniker
Pussy sc $285 Aug 08 Sedo Auction 1 5 N N
http://Pussy.sc Sedo
Pussy in $1,027 Jun 08 Sedo Auction 1 5 N N
http://Pussy.in Sedo
Pussy io $750 Jul 07 Sedo Auction 1 5 N N
http://Pussy.io Sedo
Offer of $150 given for domain alone. I received a 2nd offer for $200, site and all. So the best offer so far is $200. I'm still entertaining offers.