Hey was super easy We bought a huge bucket and dug this into the ground so the top edge sat at ground level, we bought a solar run pump that sits in the middle (full with water just below the pump spout level) and then covered in rocks. we already had these huge rock and smaller pebbles left in our garden from previous owner Cost less than £30 I think, but I’ve seen others make them in nice buckets or pots with a mesh sheet on top to hold smaller pebbles in place. Here’s mine before we put a planter around it (apologies the water is off these are the only pictures i have atm) Xx