Here you go! Yours to do with as you wish ;)

I imagine there's already about a hundred fics out there where Draco becomes an unregistered ferret animagus and takes the opportunity to spy on Harry only to end up falling in love with him (or somesuch), etc, so we'll just pretend this is from one of those. And if, for some reason, there isn't such a fic yet... Well, you've got the plot already lined up here, yes? Tally-ho!