What about adding a light to your Mother's gift idea?
Yes, you think she may not appreciate it; HOWEVER, it is the gift that keeps on giving when those flowers fade away after about a week.

Every time Mom turns the light on to search under the bed for that dropped earring, shines the light into the grandson's ear to search for the rock he placed in there, or uses the headlamp while repairing sink plumbing, she will remember and thank you. A flashlight can be carried on all forms of transportation and is perfect in potentially dangerous situations. Flashlights--another way to show you care.