Nature:
* As wrinkled as the bark of an ancient oak, whispering tales of time and weather.
* As wrinkled as the surface of a dried-up lakebed, etched with the memories of vanished waters.
* As wrinkled as a weathered mountain range, each crease a testament to the passage of countless seasons.
Objects:
* As wrinkled as a crumpled newspaper, holding within its folds stories of a bygone era.
* As wrinkled as a well-worn leather satchel, carrying the weight of countless journeys and memories.
* As wrinkled as a faded tapestry, its vibrant threads now muted but still telling a story.
Abstract:
* As wrinkled as a forgotten melody, its once familiar tune now a faint echo in the mind.
* As wrinkled as a long-lost dream, its details blurring with the passage of time.
* As wrinkled as a fading love letter, its words whispered secrets now lost to the wind.
Ultimately, the best simile will depend on the context and the specific imagery you want to evoke.