I have completed a confetti piece that was about 3ft x 3ft of confetti. I used some glue, but only needed it when I had to leave the piece and was afraid that one of my pets would get on top of it and scatter it, and once when I rolled it up and transported it 300 miles to work on it at a relative's house. Then I just sprayed it with a temporary glue I usually use for embroider, not a very expensive one. Between layers of color - this has a lot of shading done on the piece- I just laid down different colors of netting. I had put my confetti on top of broadcloth, not batting and it has worked beautifully, been washed several times.