I just had what I think is a great idea. It came to me as a result of the fact that I do not (usually) like to draw or paint on a small-scale. I like to use entire walls. Oh the fun! Or even floors.
So a great idea for kids is to take rolls of craft paper and “wall-paper” their walls with it. You don’t have to actually wall paper them. Just cut sheets as tall as your child can reach and use painter’s tape to tape them to the wall covering as much width as you can. The more the better. More paper, more fun. Trust me your kids will thank you for it. They will have so much fun.
If you want to keep them close to you in a certain room tear off a suitable amount and tape it one child sized sheet just long enough to entertain them for you too finish whatever you need to do. Then it can be moved to their room for show and tell. Or rolled up and taken to school for show and tell.
The kids will feel as if they really are drawing on the wall, which will make it that much more fun. That much more. Is that proper grammar? Doesn’t sound right. But the giant sheets of craft paper will feel right for you kids. Have fun.