I have an interesting way of doing the "disco ball" on my helos. I use a Twix wrapper. It looks good, and you get a snack while doing it! I basically superglue one end down securely, let it dry, pull it tight and superglue again until its secure all around. Just trim up the excess with a sharp no.11 blade and you're done. It's a little slow going, but worth it. The effect is great!