We can use vinyl decal to disguise iPhone 4 as a Leica camera, but if you also pay more attention to the protection of your iPhone 4, the M1 camera styled wooden iPhone 4 case may be more suitable for you.
As we can see from the images, this is a wooden iPhone 4 case that features a Leica M1 camera styled back texture created with laser engraving machine. The wooden case measures 4.8 x 2.56 x 0.51 inches, weights 22g, and is handcrafted from eco-friendly bamboo wood in order to protect your iPhone 4 from bumps and scratches. Of course, same as most if iPhone 4 cases, the bamboo case allows you to access all iPhone 4 buttons and functions via custom cutouts. Apart from that, it also ships with a protective film.
The Leica M1 camera styled iPhone 4 wooden case is priced at $34.99 USD. If you’re interested, jump to Etsy for more details. Additionally, if you need more options, you might like to check Grove wooden iPhone 4 case and Hacoa iPhone 4 case.
Update: the protective case is unavailable on Etsy, but the article will show you the same wood iPhone 4 case