Not sure of their efficacy and accuracy, but there are (stick) hand scanners to be got at fairly low prices - the ones I've seen look a bit cheap-'n-cheerful.
Would be interested on opinions - I thought about one for a job I had to do a couple of years ago involving scanning articles from a doorstep size of book, but never got round to it.
I did a couple by photographing the propped up open pages and converting them with ABBY Fine Reader, OCR programme - a little time consuming.
Good luck
Jim Carroll