Children will be especially happy with such frogs, you can even involve them in the manufacture of these figures.
The frogs' bodies are plastic drink bottles cut into about a third, inserted one into the other. For weighting, fill them with sand or soil so that the wind does not blow. Legs - half-liter bottles cut in half along, attached by wire to the body. Hats are also cut from the same bottles and attached with wire.
It is advised to paint bog residents green with acrylic paint; it lays well on plastic. And, like the final chord, draw funny “faces”.
It does not make sense to install these figures among the grass - they will be lost, but they will look charming on the pebbles in the pond.