Your smartphone probably already has a decent camera (depending on what you have). But many of us would love to be able to add different lenses to our smartphone camera. The Trippy Clip can help. This is an innovative color-changing lens system for smartphones. You can even attach it to your laptop. It is easy to install and lets you switch it between your devices easily.
The Trippy Clip fisheye lens has a 180-degree field of view. These guys also have a prism lens that they will make available if they reach their funding goal on Kickstarter. Trippy Clip is made of top-notch material and user friendly. You can support the project here.