First Iteration
When beginning to brainstorm for my corkscrew handle designs, for my first iteration I focused more on ergonomic designs that would be easier to grip and help the process of actually using a corkscrew. I realized that this type of ergonomic design would be more helpful for a more traditional corkscrew rather than the type of corkscrew design seen with two handles in the upper left hand corner below.
In the past when I have used a more traditional simplified corkscrew, it has been quite difficult to twist the corkscrew into the cork and to pull the handle to get the cork out due to the very simple, generic shape of that type of corkscrew. I played around with the idea of adding finger grooves, knuckle spaces, and curvature to account for an easier grip around the palm area of the hand.