Throw a sheet over your table so that 3 sides are covered down to the floor. Put pillows and blankies inside and tell them it is a fort or tent. Another thing is to have an indoor picnic. A quilt on the floor and some finger food and you are good to go. Baking is another great one do something easy like monkey bread here is the recipe.
monkey bread
2 tubes biscuits
1 stick melted butter
1 1/4 c sugar
2 tbsp cinnamon
heat oven to 375. cut each biscuit in 1/4. mix cinnamon with the sugar. roll biscuit into a ball, dip in melted butter and roll in cinnamon sugar. as you do it put each ball in a cake pan making layers as you go. if there is leftover butter or cinnamon sugar pour over the top. bake about 30 minutes. cool 5 minutes and invert pan onto plate. DO NOT cut all you do is pull the dough balls apart. This was a fav when my kids were little.