Line the troughs of a muffin tray (12 troughs) with one monochrome paper form each. Finely chop 50 g dark chocolate. Beat the eggs until creamy with the whisk of the hand mixer. Stir in sugar, oil and eggnog.
Stir in starch, flour, baking powder and chocolate. Spread the dough into the moulds and bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for 15-20 minutes. Remove and let cool on a cake rack.
Chop the white chocolate and the remaining dark chocolate and melt over a warm water bath, each in a piping bag with a small perforated nozzle. Colour the marzipan pink. Form 12 circles of 4 cm Ø and 1.5 cm Ø each.
From the remaining marzipan, form 12 small balls for the body (about the same size as the smaller circles), 24 small triangles of equal size for the ears and 12 small rolls for the tails.
Place the triangles on the large circles, form ears. Place the small circle as nose on top. Push in two nostrils. Spray eyes with white and dark chocolate. Press the balls flat and place them on the muffins, place the heads on top, wrap the tails slightly around a wooden stick and place them curled on the body.
Dust with icing sugar and arrange in colourful paper cups.