Epson v300 film holder

Hey all, this is my first post here. I've recently started working with film and am looking forward to learning more about it - it's a completely different world from the digital I'm used to. In any case, I had a question for all of you - I've just got an epson v300 scanner that is working great for me, but the film holder that it came with is pretty limited, as it can only hold a single strip of 35mm film at a time. I've tried doing a google search and a search on this forum to see if alternate holders are on sale but they just seem to be turning up product reviews. Does anyone know where I can find a film holder for this scanner that will let me scan multiple strips of film at once?