Weird and wonderful research

Throughout the time I have been writing Vile City, I have found myself having to look up some pretty weird stuff in the Internet.  Things like what car would have the least leg room for a 6ft 2 gangly detective, so he would have to unravel himself getting out and curl up getting in?  Can you buy sperm on the Internet - the madwoman in the novella I am writing How Kirsty Gets Her Kicks tries to impregnant my hero with it - and if so how easy is it to inseminate someone.  And, my personal favorite - is it possible to use thumb screws on a man's ganglty bits?  Well, the psycho in my novella has a unique line in torture techniques.