I saw an idea a few years back, but I can't remember where I originally saw this posted.
Anyway, I kept this idea in the back of my mind to save for when we have kids. Fast forward a few years and I decided to make this with my sister's kids.
It's really easy. You'll need about a yard or 2 of a solid fabric. Trace the kids hands and arms (to the elbows) on this fabric.
I bought fat quarters in coordinating fabric to cut out leaves and circles. The circles became the clouds. It takes a butt-ton of leaves. If you're not used to this form of measurement, cut out leaves until your hands cramp, stop for the day, start again the next day, and cut out more leaves until your hands cramp again. Then you may have enough.
Remember how I said a while back we redid our guest bathroom...well, this fit in nicely with our gray & yellow color scheme! Super happy dance!