As the title says, I need an image that contains various pebbles and/or stepping stones in black and white only. If it's being created by scratch I don't require too many pebbles/stones as I can resize them myself, it's just creating the pebbles that I'm having issues with. An example of what I'm looking for would be this: but with the stones being black and the background (i.e. everything else) being white, like a silhouette. I'd be grateful if anyone could assist me with this.