Ravelry has lots of free shrug patterns so you don't have to have them buy books. The reason I say this is because sharing a pattern in a book is a usually a copyright violation. Once you pass it out you have no control over it. Find a free one and have them download and print it themselves. Then there will be no question about you sharing even a free one.
There are also lots of simple pullovers. They may not all like the same patterns though.