The other day, when my gas was running out, I took a clear rod of glass, heated it and applied the twistie scraps to it, melted it into a blob, and then twisted it. Kind of re-twisted twistie. The first fish pictured is the one I used that on. I ended up twirling it a bit on each side of the fish body to give it a nicer look. You can see a bit of silver haze on the bottom fish- I really like this look.
One thing about using scraps- I tend to use colors I wouldn't normally use together. It's always nice to try out some different things and see the results!