Beat egg white and salt until stiff, slowly adding sugar. Continue beating the beaten egg whites until the sugar is dissolved and a shiny mass is formed.
Pour the beaten egg white into a piping bag with a medium-sized perforated spout and spray approx. 35 small tuffs (approx. 3 cm Ø) onto a baking tray lined with baking paper. Bake in a preheated oven (electric cooker: 90 °C/ circulating air: 65 °C/ gas: see manufacturer) for approx. 1 1/2 hours. Open the oven door and let the meringue cool down.
Chop the chocolate and melt over a warm water bath. Stir in the oil to create a smooth and shiny mass. Cut 18 small circles (approx. 3 cm Ø) from the honey wafers. Put a blob of chocolate on the wafers and place the meringue on top.
Place meringue on a fork and cover with chocolate. Drain well and place on a plate or tray covered with foil. Chill meringue for 5-10 minutes until the chocolate just begins to set.
Finely chop the pistachio kernels. Sprinkle grated coconut and pistachios on the turrets and chill for another 30 minutes.