Maybe they should try to sell it to Lord Voldemort ? He's a snake lover after all. Though these gentle garter snakes would not be very happy to share their antro, den with voracious Nagini...
Being sorted into Slytherin is one of the biggest things that will happen in Hogwarts. Not only are Slytherins described to be pure-blooded, prejudiced and evil, and no one in Hogwarts seems to like them.