Here is the Kerry's Corn Cutting Kit people have been talking about. Though I wouldn't call it 'amazing', or 'life altering', I will say it is a handy little device for easily cutting whole kernel corn off the cob.
The Corn Cutting Kit is quality American made. The handle is powder coated metal rather than cheap fiberglass that can splinter over time.
Because the handle is metal, the cutter needs only one rivet on each side to stay in place, therefore it can open wider and maintain conformity to the cob much better.
The cob screw is another American made tool that is the ideal length with deep grooves.
I am flattered by the number of people who try Kerry's Corn Cutting Kit then order more to give away as gifts! It is one of those inexpensive items that is used and greatly appreciated season after season.