Define your own brush

You can define your own "handmade" brushes in Photoshop.

Remember, brush has behaviour of Mask object.
100% of White color = 0% Visibility
100% of Black color = 100% Visibility
It doesn't matter, which color (red, green etc.) you will choose. Only Black and White colors are important for the brushes (as the same as for the mask).
OK...
When you have made your own brush with black/white colors on the transparent (or white) background,
go to the Edit menu and select "Define Brush...".
You will give a name to your new brush. This new brush will be displayed in the brush list when you use some of that "brush tools (brush, clone tool, eraser...)".