If you think that heavy construction machinery like a Caterpillar 5230B Excavator is an unlikely source of inspiration for a piece of art, then you obviously don't work for Michigan art studio ...

Model SK210LC-11 KOBELCO excavator has an operating weight of 50,000 pounds, and its Yanmar diesel engine delivers 160 horsepower and 577 lb.-ft. of torque at 1,500 rpm. Bucket... Model SK45SRX-7 ...