Weird Shapes

1. Open up the image you want in Adobe Photoshop. I'll be using the one below.
Base Image

2. Right click on the Rectangular Marquee tool and click on the Elliptical Marquee Tool.
Image Reference #1

3. Draw a circle around wherever you want. To make more circles, press Shift and continue pressing it until you're finished with your second circle. Repeat this for however many circles you want.

4. After that, right click and click on 'Select Inverse'. Then press Delete on your keyboard.

You should get a weird shape like the one below. Add a 1 or 2px border and you're done! (:
Result!

If you have any questions, just post!