Marni Van Grouw and her family knows a few things about miniature golf fundraisers. The Van Grouws for five years have held one of their own in their Lititz, Pa., backyard, featuring themed pop-up style miniature golf holes.

“Every August, we have our fundraiser, and we usually pick a nonprofit close to us,” said Marni, whose son, Austin, 8 years old at the time, originally came up with the idea for AJ’s Mini Golf as a means of raising money to help a flood victim in Louisiana in 2016.