The … the flood of ideas for Do It Yourself constructions – the internet often leads to confusing real art forms from surface-object processing techniques. For example, pebbles belong to the materials that are offered for simple constructions of various types, but also for creations that do not have the typical DIY construction in the sense that in order to be truly successful they require to a large extent artistic talent. See here excellent paintings with pebbles.
So if you have a similar talent you can take advantage of all the small and bigger pebbles that you will gather on a beach to create with them very elegant paintings, incorporating the pebbles according to their size – shape, in order to represent objects, figures, etc. within the general theme of a canvas.