What I am saying here is, consider doing something quite innovative at home. Given the length of time you may be housebound, let your house become the creative space. How about setting up a room which can be converted into something creative where the children can experience play and learning?
Perhaps a game room?
Invite the children into brainstorming what that room could look like and using all sorts of scraps etc. Be generous enough to let them experiment.
Also consider painting a room. Under instruction, a child can assist.
The garden is an extraordinarily creative space. How about the children making an art piece for the garden? This could take some time, perhaps several days. The joy is in the process. How about painting the rocks, setting up a chicken coup etc?
Of course, cooking especially baking is a wonderful creative exercise for children. Consider it hospitality 101 at home.
Are there arts and crafts you can teach your child such as knitting, sewing? I hear macramé is back in fashion. Check out places like art and craft shops, junk yards, op shops, etc. that can offer cheap supplies for art and craft activities.
I have recently heard of a dad building a bike with his children using old parts.
Do you have old bikes, toys etc. that could be used for the creation of an art piece? Children love pulling apart old equipment.
If your home will be your total sanctuary for several weeks, set it up to accommodate movement and space for the children. Remove objects that will create stress when damaged. This is important for your sanity. Accept that for a few weeks the home will be a different space in which to live. It will be a space for active living.
Can you build a cubby house with your children, a go-carts etc? It is all about doing activities that require a focus, time and patience.
How about technology. Look online for some short courses that are enjoyable and have a learning aspect to them. Of course, minimise screen time.
How about making home videos, writing songs etc.
Children thrive on being creative and if you create a home environment that enables them to express themselves, they can entertain themselves in unique and intuitive ways over longer sustained periods.