When I can't find the time to illustrate and paint I have to come up with other ways to channel my creativity. One thing that I found suprisingly fun was making birthday cakes for my kids. It's not only appealing for your gums and sweet-tooth, it can be a joy for the eyes as well.
I'm not a professional baker in any way, all is done at home in my kitchen, but if you're not all thumbs when it comes to the edible "arts" you can do it. Just allow yourself to have fun and plan ahead, because it takes a lot of time, at least for me. That's why I only do it a couple of times every year.