What Stormbreaker would look like if instead of Groot’s arm, it had its original handle
If writers/directors had chosen to introduce Stormbreaker with the original handle, this is what it would look like:
The image isn’t a fan made. It’s from a book (Art of avengers infinity war, I think it’s called) that contains concept arts and illustrations released by Marvel itself. Therefore Stormbreaker would be exactly like that.
And in my opinion this version is even better than the one in the movies. The handle looks firmer, lighter and thinner than the wooden one, and it also looks more comfortable to hold. Overall it is in my opinion aesthetically better than the handle made by Groot.