[Photo my own]
V & A's Hollyhock iPad skins and corresponding wallpaper offer fabric junkies a quick and easy iconic English floral fix. The original roller-printed glazed cotton was manufactured in the mid-19th century by A.H. Lee & Sons. Ironically, Museum curators note, this organic print was included in the Victorian exhibition False Principles in Design, because some Englishmen (notably Henry Cole) found it a bit too naturalistic. Nevertheless, its popularity endured.
[Design for wallpaper, Silver Studio, 1890 (SD8791A). Museum of Domestic Design & Architecture. Via Victoria & Albert Museum.]
So many V & A prints would translate well to iPad skins. I think something by Arthur Silver would be a great candidate. And speaking of Silver, don't miss The Silvern Series: Photographs from the collections of the South Kensington Museum.
Related past post: Daisy Chain.