Tungsten teardrops can be used to create a great nymph shape.
For some excellent examples see the journal article: Tungsten Teardrop Nymphs by Barrie Duffy
Barrie Duffy shows how to fix the teardrops to the hook in Teardrop Nymphs for Snaggy Waters
He recommends Hends BL554 or Hends BL154 , pupa hooks and jig hooks and also Klinkhamer hooks such as Hends BL 550
10 teardrops per pack