Then I had the idea to make tassels. It took me awhile to act on it but I finally have and I'm very happy with the results. For sashes I want to finish off with tassels I just hem the ends and then sew on the tassels. Here's a couple I've done so far:
Tassels are super easy to make. I wish I could just share the image from the book I used but that feels like copyright violation. If you can track it down, I used Weaving with Reeds and Fibers by Osma Gallinger Tod and Oscar H. Benson. I found it in a Half Price Books for $2. It's basically a basket weaving book. Though I don't really have any plans to weave baskets, I picked it up anyway because it seemed interesting. The tassels section is only a page and a half but if you make a lot of table runners or belts it might be worth it.
I'll try to describe how to make tassels in my own words. I'm not the best at describing things, but maybe after a couple tries you'll figure it out. It really is easy once you get the hang of it.
Step one: Wrap loops of yarn around the palm of your hand. For the tassels above I made 16 loops. Use more or less for desired fullness. Loops don't have to be all from the same length of yarn, so if you have scraps or want multi-colored tassels you can use more than one piece of yarn. Just make sure all the loops start and stop somewhere between your middle finger and your pinky.
Step two: Pull the loops off your hand keeping them all together.
Step three: Lay the loops on a flat surface so you have a circle.
Step four: Take a length of yarn 4 inches or longer. Fold this yarn in half. Lay this yarn under your loops so that the folded portion is inside the circle and the free ends are outside the circle.
Step five: Take the free ends of the yarn from step 4. Fold those free ends over the loops, and through the folded end of itself. Pull tight. You should now have a piece of yarn holding all the loops together. It should be a circle on a string.
Step six: Hold up your tassel by the string. Bunch up the yarn of the loops so they are close together. Now when you lay the item down again you should have a bundle of yarn with a string out the top rather than a circle of yarn with a string out the top.
Step seven: You'll need another length of yarn about a foot long. If you can, I found it best to not cut this yarn off of the skein. Just pull directly from the ball of yarn until your done and then cut it off. Leaving a tail about an inch or two long, wrap this new yarn around the top of the loops about five times or until it looks good.
Step seven is where it gets difficult to say. I might just have to take pictures. If there is enough interest and confusion, let me know in the comments and I'll go ahead and make another post with pictures. For now, let's call the top of the loose yarns from step 4 point A. About 1/4 inch below the bottom of where you want to have the wrapped portion go is point B. The top of the wrapped portion is point C.
The tail I said to leave starts at point A. In order to make the wraps you'll have to change directions causing a fold. The fold starts at point B. You'll begin wrapping around at point C.
When you've finished wrapping around, cut off the yarn. Do not cut flush to the tassel. Instead cut so you have another two inches or so beyond the wrapping.
Step eight: Take the loose end of yarn from after the wrapping and place it through the folded yarn now held in place by the wrapping. (the loop made from the yarn placed in step seven) Pull tight.
Step nine: Holding the tassel up by the four loose yarns, make the loops into circles again. Cut the circles into even lengths by cutting directly across from the wrapped portion.
Step ten: Even up the tassels by cutting longer strands. Optionally you can knot together the four yarns on the top so they all start at the same location. I found this makes it easier to sew them on.
I hope any of that made sense. I'll add pictures if there's any interest. Good luck!