Melt the white chocolate. I do this in the microwave. Microwave uncovered on medium (50%) for 1 minute, stir. Repeat this process until the chocolate has melted.
Transfer the chocolate to a piping bag.
Lay the vanilla wafer biscuits out on baking paper. Or a silicon mat.
Use a small amount of melted chocolate to attach two eyes to each vanilla wafer biscuit.
Drizzle white chocolate over the wafer biscuits to look like bandages. Chill for 30 minutes in the fridge and voila you have mummy cookies!