Almost Certified

Kelli Cain and Brian Crabtree
Almost Certified (grade A noise for non-discerning consumers) 2004

This bizarre sound machine consists of a series of eggs of various unconventional varieties and sizes. The eggs are tapped by an aluminium mallet, and amplified. The process is operated by an obsolete 1993 Mac LC III. The piece was first displayed in 2004 at Machine Project Guide to Cultural History and the Natural Sciences, Pomona College Museum of Art, California.

Interesting blog article here