Anvil strikes: "anvil" by MrAuralization, licensed under CC BY 4.0. Cut into separate hits and levelled.
Result stamps: "metal stamping" by lah_leal, public domain (CC0).
Pixelify Sans by the Pixelify Sans Project Authors, licensed under the SIL Open Font License 1.1. Licence text: PixelifySans-OFL.txt.
No apprentices were harmed. Several bars were.