That little white fungus that
Puffball - Wikipedia
NH Notes: A Diverse Array of Mushrooms in the Backyard – Naturalis Historia
Puffballs On Your Lawn - Dave's Garden
Puff balls. How to get rid of them? : r/lawncare
The NHBS Guide to UK Puffball Identification
Minnesota Grown: How to Identify a Puffball Mushroom
Do mushrooms hurt my lawn? - East Idaho News
Puffballs On Your Lawn - Dave's Garden
Large as life – The Giant Puffball – The Mushroom Diary – UK Wild Mushroom Hunting Blog