The Tinkers Tower sells the blueprint for the Dripple Pipes and for Weather Pains but you can't acquire Ox Horns or Volt Goat Horns to craft them. Neither the Magic nor Oddity shop sell Ox Horns or Volt Goat Horns.
Steps to Reproduce
buy these blueprints in a tinker shop, be unable to find any way to acquire Ox Horns or Volt Goat Horns in Hamlet only worlds
This issue has been fixed in either a future version or updated in a previous version.