yantra

yantra on a machine; BG 18.61
taila-yantra-cakra-vat like the wheel of an oil-pressing machine; SB 5.21.13
taila-yantra-akṣa-vat like the axle of an oil-pressing machine; SB 5.21.14
dāru-yantra-vat like a wooden doll; SB 10.11.7
vīṇā-yantra a stringed instrument; CC Madhya 8.133
jala-yantra from a syringe; CC Madhya 13.105
kāṣṭha-yantra an instrument of wood; CC Antya 4.74
vīṇā-yantra the stringed instrument called the vīṇā; CC Antya 5.73