How to make seed bombs

Materials

2 buckets of sieved soil (preferably mixed with some compost)
1/3 bucket of coconut coir fibers or straw
1–2 kg attapulgite or clay (powdered)
1–2 kg legumes (e.g. broad beans, lentils, chickpeas)
400ml seeds, e.g. wildflowers (daisies, poppies), herbs (oregano, thyme, basil), vegetables (cherry tomatoes, lettuce)
water (as needed to form a workable dough)