Okay, back to the dress, you sew with elastic thread hand wound in the bobbin and whatever you have in the top. For this I used a lovely variegated pink number . . .love it! This dress from Weekend Sewing, by Heather Ross and can also be found on Heather's site with a link to her segment on Martha. Some other blogs have wonderful tutorials if you search for shirring and sundress. I love this one and also Sandi Henderson's blog with a tutorial and a link to a shirring madness flickr group.
From take off to touchdown this dress should take about an hour. You really only need a few simple measurements, a yard of fabric, a girl age 1-4/5 to sew for and sense of adventure. If you are in the Saratoga Springs area, come on in for the class . . . MAD FUN I promise!