Place 15 fairy cake cases on a board or plate.
Melt the dark chocolate in a bain marie (in a heatproof bowl over a pan of boiling water) or in the microwave.
When it's almost melted add the maple syrup and butter and continue heating until combined. Try not to stir too much.
Remove from the heat and stir in the puffed rice, dried fruit and hemp hearts if using. Mix until everything is coated with chocolate.
Spoon the mixture into the fairy cake cases, pressing down with the back of a teaspoon.
If you are making these into nests make a well in the centre and push the rice mixture to the sides.
Allow to set in the fridge for 30 minutes
Decorate with chocolate eggs, marshmallows or chicks as you wish.
Store in the fridge.