Oh yes! One time I was babysitting a 3 yearold and she was so enthralled with what I was doing, I was able to almost completely piece an entire king-size log-cabin in 1 day with her on my lap! Of course, she sat very still with her hands in her lap, carefully "watching" every stitch!!
I also made matching dresses (just pillowcase type dresses) for 2 and 4 yearolds AND their dollies!!! Again, both on my lap!