I completed this project with my son who is 2.5 and we were done within 30 minutes. The nice thing about it is that its really inexpensive (not more than $5 if you already have the markers) and the materials are easy to get. I found the mini canvas and easel at a craft store here in Brussels called AVA and the markers at one of the bigger Carrefour stores. I'm sure that in the States you can find everything at Walmart, Michaels or Hobby Lobby.
As they were so quick to make, my son had no problems with making two of the same time so we used them as mother's day gifts for both grandmothers.
-blow markers
-canvas (small)
-easel (small)
-kitchen paper
-paint (optional)
Set out matching markers' colors and let the kids blow on the markers directly on the canvas.
Let it dry and paint the easel with a matching color or leave it natural wood.
What do you think?