According to this
press release, the Milwaukee Brewers and three other groups sponsored free prostate cancer screenings at Miller Park before tonight's ball game.
The press release states: (emphasis added)
... the free, private, confidential screenings will take place in a mobile clinic vehicle near the TGI Friday’s restaurant in the northeast corner of the ball park. No appointment is necessary. All participants who complete the screening will receive a voucher good for two tickets to a future Milwaukee Brewers home game.
I guess souvenir promotions are considered old-fashioned these days ... nonetheless, I'd be careful if there is a Glove Day in Milwaukee anytime soon.