Grind the biscuits in a blender or mash them with a mallet. Add the ground walnuts, coconut flakes, honey and melted butter to the resulting powder. Stir everything and form flat walnut-sized balls from the mixture.
Arrange them onto baking paper or foil and put in the fridge for 5 hours.
Then take a treat, smear it with marmalade and stick it to another one. Do this for all of the treats. Return them to the fridge for another hour and then serve.