Caregivers of Alzheimer patients

I volunteer at a local nursing home doing crafts. It is important to stimulate their minds without frustrating them. We have a great time and I have some men in my class that say they have never done crafts before but they give it a try.
I like to do practical crafts, i.e. tissue box covers for their rooms. Some of them have no idea where it came from, (LOL) but a lot of them get a warm fuzzy feeling and remember the fun they had creating it.
Does anyone else have suggestions on activities for people with dementia?