Milky Way Bass Drum is crafted with Hillwen Engineering in Mabinogi. This page lists everything needed to make it, checked against the game as it exists today. The interactive planner lives in the Hillwen Companion.
Recipe availability
Milky Way Bass Drum is a rank F Hillwen Engineering recipe with a best success rate of 90% at rank 1 and dan ranks.
Materials
Each craft uses
2× Harmonic Wood Board — Open the end chest of the Musical Math Dungeon.
4× Melodic Metal Plate — Open the end chest in Musical Math Dungeon.