Satisfaction, happiness and a sense of pride at acomplishing something.
You can see it here in Miss L's face, holding up her first item of sewing. (which she later taped to the window in our study she was so pleased with it!)
I debated whether to ask the 'man in the red suit' to bring the girls a small sewing machine for Christmas but received advice to the contrary from my online sewing buddies.
Instead it was suggested by Cass that I teach them to use my machine properly.
This was met with a sense of amazement from a few of my friends as even they expressed fear at the sight of that sharp needle bobbing up and down and after all my older two girls are only three and half years old.
But with careful guidance (use your hands to guide the fabric, don't push it through or hold it tight, don't drop the presser foot lower it down) and establishing safety rules (never put your foot near the foot pedal until you are ready to sew, only ever use the machine with Mama there to help as it is not a toy) the girls took to it like ducks to water.
I placed the machine on their little table and they sat on their stool to sew so everything was at an appropriate height for them, making it easy to control.
Now I fear only a couple of things, my fabric stash being diminished for doll clothing and not getting enough time on my machine for me!