Unfortunately I am not an engineer so I can't give you a good answer, but I noticed this topic has gone unanswered for a few days so I at least wanted to give my opinion in case it take a bit longer for someone qualified to answer.

I would look at job openings with various golf equipment manufacturers, see what they say in the engineering/design job descriptions. You may also benefit from sending an email to someone in HR, for example Acushnet has several contacts listed publicly here: employment.acushnetgolf.com/.../

It's never too early to start networking and spark relationships with folks in the industry, maybe even reach out to the golf coach at Penn State and see if they know anything or can put you in touch with someone. You're already one step ahead of a lot of students, thinking long term to start your career on the right foot. I spent a year in the engineering program at NC State before deciding on a different path, but in my experience the first year is more just the general ed classes before you go into the more specialized stuff, so there's time to figure it out. Good luck!