Very lightly oil the insides of four egg cups or shot glasses, and set aside. Cut a small slit in the centre of each cupcake case using scissors.

Melt the dark or milk chocolate in a heatproof bowl set over a pan of simmering water, or in short bursts in the microwave. Divide the melted chocolate between the oiled moulds, then chill for 15 mins. Meanwhile, melt the white chocolate as you did the dark or milk, then pour over the set dark or milk chocolate layer.

Insert a lolly stick into the centre of each of the moulds, then scatter over the toppings of your choice (see tip, below). Slide the cupcake cases, upside-down, onto the sticks through the slit to help keep the sticks in place. Chill until solid, about 4 hrs, then discard the cupcake cases and package the stirrers. Will keep in a cool, dry place for up to one week.