A casual baby shower specifically for the dad-to-be where guests bring diapers.
If you are hosting or participating in a drive to collect diapers for families in need. Diaper Dash
Many marathons (like Buffalo or Calgary) hold "Diaper Dashes" for toddlers and crawlers alongside the main race. A casual baby shower specifically for the dad-to-be
Since "Diaper Dash" can refer to several different events, Choose the one that fits your specific situation: Diaper Dash