A self-cleaning pet litter box has a conveyor to incrementally transport clumped litter material and solid pet waste to a waste receptacle. Applications for these switchable holograms include communications switches and switchable transmission, and reflection red, green, and blue lenses. The invention also relates to methods for producing a soybean plant containing in its genetic material one or more transgenes and to the transgenic soybean plants and plant parts produced by those methods. The server generates a token paired with the identity, embeds the token in a multimedia file, and sends the multimedia file to the video console. A switching regulator is controlled to provide a first generated VBAT corresponding to the selected target VBAT value, wherein the switching regulator provides a second generated VBAT having a pre-determined proportional relationship to the first generated VBAT. Interferometric lithography and anodic bonding or flip-chip bonding techniques can be used to make the apparatus.