Another awesome DIY camera kit is Konstruktor from Lomography. Lomography is known for its legendary medium format toy camera Diana and Holga. Lomography also makes pretty interesting cameras. Though Konstruktor is a DIY camera kit, it is definitely a solid film camera and fun to build.  I would say it was one of the easiest DIY camera kit to build.

Building instruction was pretty simple to follow, but it also has Youtube video.  Along with Lomography films, it makes a good set up to enjoy true Lomo-esque photos.

There are different kits. Just the camera, Super kit with lens and viewfinder attachment, and collector edition Transparent kit　Also available on eBay.

Taking pictures using Konstruktor can be fun.  As long as you use a tripod and take time to focus(yes, you can focus using focus ring on the lens), you can take decent pictures.  But it is little bit difficult given how dark the view finder is.  What I would recommend is to get the collector edition and display the camera rather than using it.

Pros:

• Shutter comes already build.　
• Few accessories to make taking pictures little easier.　
• Can focus (somewhat).　
• Widely available

Cons:

• Viewfinder is small and dark. 
• Used to be little expensive compared to other DIY kits