I have taken the mechanism and dial from a cheap kitchen timer to install in one of my pieces, perhaps I will make my own dial or lever. The important thing is to have it tick and then ring, to startle the viewer. If not to startle the viewer than at least expand the senses that my work assaults. Speaking of which, while at the dollar store in line to purchase this timer, my eyes flickered over the air fresheners! Somehow I must incorporate an everlasting odor into one of my pieces, but I'd rather it be bacon than a chemical floral....