Do you know that you can create your own Photoshop brushes? You can get so many benefits from Photoshop brushes. Simply follow my steps to create brush.

Create a new file and then create a new Layer. You can create a new Layer by pressing Ctrl+Shift+N or by clicking the highlighted icon shown in the screenshot.

Then draw something on the Layer and delete the Background layer as shown in screenshot.

Now go to Edit > Define Brush Preset...
Then new brush will be created in the brushes, you can use it anywhere you want.