滝壺[takitsubo] basin under a waterfall
便壺[bentsubo] night-soil vault
火消壺[hikeshitsubo] charcoal extinguisher
骨壺[kotsutsubo] funerary urn
金壺眼[kanatsubomanako] goggle-eyes

茶壺[chatsubo] tea urn
消し壺[keshitsubo] (jar used as a) charcoal extinguisher
蛸壺[takotsubo] octopus pot
痰壺[tantsubo] spittoon