Hi, how old are your 2? I am used to having to entertain my nieces and godsons and they enjoy the following.
What about making Halloween masks out of paper plates?
or blow up a balloon and cover it with paper mache, let it dry and make legs from toilet roll tubes and create animals, pigs work well. Then they can paint their creations!
You could get them to make some christmas cards.
Make a list of things and get them to do a treasure hunt. We did this in the local park collecting conkers, acorn, feathers, leave etc and then we made a picture out of our bits and pieces.
I hope these ideas are useful!
Caroline