- Dogu zuka (grave for tool) is a mound erected to bury old worn tools used in daily life and tools used in various professions in appreciation of their many years of service as well as to pray for improving skills in one's work.
-道具塚とは普段使っている生活道具が使用できない状態になったとき感謝を込めて埋めたり、様々な職業の道具を埋め感謝しその職の技術の向上を祈願して建てられた塚。