This is a logo I made for myself. I tried to combine both letters of my initials, S and E, into one symbol so that, depending on how you looked at it, you could see either. You can see the S if you allow your mind to fill in the space on the left between the top and middle blue symbols and on the right between the middle and bottom ones. The E is there if you take the three blue symbols as the three horizontal bars of the E and let your mind fill in the vertical bar.
These are some icons that could be used in an app. Its a sunflower, a shopping cart and a musical icon.
This is a picture I took in Valparaiso, Chile that I did some basic editing on.