I would like a USB webcam with a low resolution, perhaps something like 160x120 and certainly under 640x480. It does not need to be cheap, so something that supports a range of resolutions in hardware would work fine.
It will be plugged into a computer that someone else controls, so I cannot easily cripple a higher-resolution device in software. A camera that produces images with a higher resolution but e.g. heavily compressed or somehow filtered would also work (but only if the processing is done in hardware). It will be used indoors under normal lighting conditions.
Many thanks for any recommendations in advance.