I finally gathered the materials that I needed and got to work yesterday afternoon. After you see it, you're going to want one too, for some little girl in your life. This would be a great Christmas outfit. Iron a candy cane shape to a white or red shirt and use red and green tulle for a Christmas dress!
I may do that. AH!
Plain shirt-best if it's a little long...
Tulle-2 rolls 6" wide
Optional if you'd like a heart on the chest:
Heat n Bond
Scrap of fabric
The shirt is from Target. They have a nice selection of plain shirts for $4.50 a piece.
When I finally had enough tulle bunched up to make it around the shirt, I tied the thread off on one end of the tutu so that it wouldn't loosen. I then pinned the tutu carefully to the bottom of the shirt. The top of the tutu should be about 1-1.5" inches from the bottom of your shirt. Use plenty of pins. It's pretty fluffy.
I put the shirt onto the sewing machine through the neck so that the skirt sticks out to the left of the machine. Use a ZIG ZAG stitch for this part. Sew over the thread that's already there. Be careful that the t-shirt isn't bunching. Go all of the way around and then at the end stitch back and forth a couple of times.
Cut your threads, and voila, you should have a beautiful tutu shirt for less than $10. I also added a heart ironed on with heat n bond to the chest. You can put whatever shape or fabric you'd like.