Mom wants to look her best but she's so busy taking care of everyone else, she may neglect herself. Make an appointment with the makeup artist/rep of your favorite makeup brand and take mom and BOTH of you have a makeover. A fun way to spend time together.
Go to a department store, Sephora, or Blue Mercury. MAC is a great place to do this too. If there is a charge, it is usually applied to the makeup.
This is the time to learn the "smokey eye", try mineral powders or find just the right shade of lipstick.