How to create clay and seed balls or guerilla bombs.

What's happening friends! Blake here looking for stuff to create clay, basic ingredients from my local store. Which stuff I use to create safe clay for my guerilla bombs? I'm very interested in creating the seed balls this winter to have more wildflowers next spring in my gardens? Could y'all show me what a guerilla bomb look like and the results of it? How many seeds I have to put in the clay for the stuff to spread into my gardens to germinate next year? Please reach me if you need me.
Out!

I make seed balls with random local clays. I like grape size, cause they shoot easily (and far) with a sling shot.

I aim for about 10-20 seeds per ball of a number of different species. If one thing doesn't like the conditions, perhaps something else will thrive.

Very good! Where I get the clay from? Is it sustainable?

In my ecosystem, clay shows up all over. In some cases, the local clays reach hundreds of feet deep. Additional clay gets deposited during every summer thunderstorm. Even my garden soil would make suitable seed balls. Even more suitable if I dig down 8" to get below most of the organic matter.

I test for suitability by making a grape sized square from dampened proposed soil. If it drys hard and sticks together when dropped or thrown then I figure it will work great as a seed ball.

How we make our own clay at home and what materials we need to create one? I want a non toxic one.