Today I have made my own spray paints. All you need to put the paint in is some spray bottles. Luckily, I had a few empty ones to hand so used these.
All I put in the bottle was a squeeze of Acrylic paint and a bit of water. I then shook this to mix it and it was ready to use.
I have used stencils with it and sprayed and let the paint drip down here are a few examples
I hope that you like the idea :)