Here it is!
I used this thing to grate three coconuts. It's tempting to make this a two person operation but it's actually easier with one. I found that I could get a better feel for the operation if I did it alone. The suction base didn't work all the time but it was good enough for a minute or so of grating and then you either should reset it or it pops off. It also rotates around its base. Although this is a little annoying, it's much easier than grating coconut by hand!