Story hour at the library.
Cooking with Mom...hard on Mom, but fun for kids.
Painting birdhouses, boxes, etc. from Michaels. Then hang them outside.
Coloring pages. Either the velvet ones that you can only a bit of at a time, or smaller ones off the Internet. Hang them up. Change every few days, as new masterpieces are created.
Choose a topic and do some extra reading. I was in first grade today, and we were talking about sharks. The kids couldn't visualize how long 21 feet was, so we laid out 21 pieces of paper on the floor. They were most careful not to mess up our hot pink shark when they walked by.
Container gardening. Either flowers or veggies.
Dance with The Wiggles, or whoever is popular now. My baby is 17, so I'm a bit out of the loop.
If you make the dough with several different colors, you can make beads and string them for a pretty necklace for Mom.
If you don't put in food color, you can make Christmas ornaments and paint them when they're cool. Use half a paper clip pressed into the dough for a hanger before you bake.
I love these kinds of projects!