Here's how it works
Saw a 20 cm and a 25 cm long wooden stick and glue them with hot glue approximately in the middle of the bark slices
Now halve the Polystyrene ball with a long, sharp knife and stick the halves onto the round bars. Due to the high temperature of the hot glue, the stick melts into the hemisphere. Apply the light structure paste with a Spatula first to the underside of the hemispheres, i.e. the cut surfaces, then to the rounding. Use a wooden stick to draw circles into the moist mass and let it dry thoroughly.
Wrap the round bars with strips of Straw silk paperwhich you will be using Napkin varnish fix it. After drying, prime the umbrellas in Indian yellow and May green and wipe over with Terracotta or olive green. Press lightly with Paint sponge so that the outline of the curls becomes visible