To finish the dress you need bias tape for straps.
Bias tape is cut "on the bias" which means diagonally. This means it stretches and is A LOT easier to apply along curves.
I did a great tutorial on how to make bias tape from a small amount of fabric. Bias Tape Tutorial
Once you've made the bias tape, cut it to the length you need. (you can tell from the pattern, or you can estimate - though it's definitely better to guess too long than too short!)
Once you've made your strips, Fold in half and crease enough that you can find the center. Line the center of each strip up and pin to the center of the under arms as identified by the seam.
You'll have a section over hanging to make the ties with. (This image is from a different project so you can't see the over hang here)
Sew the strap to the underarm.
Then follow the directions in the Bias Tape Tutorial for making a clean strap end.
Fold over the bias tape and sew from one end to the other.
Repeat with the other side!
And the FINAL step?
Email me photos of your work so I can include you in the wrap up!
mylittlegirlscloset at gmail dot com