Horn of Blasting
Wondrous item, rare · 2014 rules, SRD 5.1
Action: blow it; 30-ft cone, 5d6 thunder and deafened 1 minute (DC 15 Con half); objects take double. Each use has a 20% chance to explode (10d6 fire to you).
Also in the 2024 rules (SRD 5.2).