Sew across the other end of the seam to close the tube.
Place in water until the crystals are plump. The scarf pictured below was soaked for about 10 minutes.
NOTE: Test the amount of crystals you are using and use quality thread! Apparently the brand and the amount of time they are left to soak can cause a difference in the amount of expansion of the crystals. The first time I made a large number of these, I set all the scarves in a bath tub filled with water while we did other things to get ready for the parade and did not keep an eye on them.
A few of them popped their side seam, leaving me with a gel mess to rinse off the other scarves! I had used cones of serger thread, thinking I was saving myself work when making a pile of the. It was more work to clean up when the thread broke than it would have been to re-thread the sewing machine a few times.
