Some kittehs can haz cheezburger. Other kittehs can mak yur face cheezburger. Like this kitteh, smithed into a sweet ring with conflict-ready stainless steel cat ears. I'd say it would make a great gift for your girlfriend, but I guess that really depends on the temperament of your girlfriend, and how likely she is to turn it on you when she's mad.
The cat self defense rings come finished in gold or silver.