One morning in 1989, 18-month old Elly Kline held the attention of five adults for four hours as she played happily on a bright pink backdrop. This was one of i play.’s first professional photo shoots with Elly modeling our biodegradable, disposable Dovetails® diaper.

All hands were on deck, including Elly’s dad, the photographer, a stylist, a baby wrangler, and i play., Inc. owner Becky Cannon. We followed Elly’s lead as she moved at her own rhythm. If she wanted a cookie, we gave her a cook...