On the first try I used heavy red thread and that was difficult to work with. On the next few I used string, better but it still had its issues. I was told to try dental floss, that it holds tight and doesn't slip. If I decide to do anymore that's what I will use.
I'm not sure how or if I will use them in my red texture piece I'm working on. I'm thinking of trimming away or tucking under the background and just using the balls like bunches of grapes. It was fun to try even if I don't use them.