This #free99familyfun activity is always a hit: Cover a table with white paper (tape down the sides so it stays put), set out some art supplies & let the kids go crazy.
The little ones love it, but those blank white spaces tend to bring all ages to the table (even if only for a short while 😜). Your art supplies can be as simple as @crayola crayons, colored pencils, or even regular pencils. OR you can try this simple DIY paint recipe: add a few drops of food coloring to condensed milk & stir. Voila! You have non-toxic paint which is especially awesome if you have a baby like mine who loves to eat everything! 😩😆