DIY: Blender Defender keeps cats off counters.

My two were petrified of our shower when it was put in because it's quite noisy, but have both since learned to ignore it. One even sits on the side of the bath watching the water. They still hate the vacuum.

If they figure out that the blender doesn't move around the sideboard, they MAY get used to it, and the owner will end up back at square one. Of course, it goes without saying that every cat is different...