So, here we are, 115 posts in from twenty-some contributors, and
not one person has attempted to answer the OP's question.
I have no experience smelling balls, so I put "balls smell like" into a search engine. The first thing I noted is a contribution from TexanChiver in this thread:
https://www.reddit.com/r/NoStupidQuestions/comments/6igkww
"Your balls KINDA smell like everyone else's. Everyone has a different PH balance, different body types, bacteria, etc. so everyone's balls are going to smell different, but kinda the same. "
This suggests to me that Justin Fields' balls likely smell similar, but not identical to, others' balls. I felt I could generalize the search somewhat, then.
So I then noted, in the search results, the following suggestions for how balls may smell:
- pickles
- ham
- fish
- paint
- whipped cream
There's also apparently a song called, "Balls Smell Like Gucci." This by itself doesn't mean much to me, but should likely be considered by those who own such items.
Considering this evidence, it sounds like Justin Fields' balls may likely smell like Thanksgiving dinner and dessert in a freshly-redecorated dining room.
Why this conversation devolved into a discussion of Fields' potential, capabilities, and value, I'll never know.