Scanner that scans multiple images all at once?

I remember taking my animation frames to a post office and them doing this for me, which was really cool. But now I'm wondering if there's a decent priced one that can do this. Just so I don't have to scan it all frame by frame. I didn't know where else to post this so I figured this place was as good as any. So I'd be down to hear your suggestions for what scanner I could get.