If you are looking for that specific chocolate biscuit taste, consider these:
Current Availability (originally made by Arnott's) are no longer available for purchase. buy golliwog biscuits
A similar dark chocolate biscuit often used in baking. If you are looking for that specific chocolate
Suggest other that are still in production. buy golliwog biscuits
A UK-based chocolate-covered alternative. If you'd like, I can: Find recipes for homemade chocolate "character" biscuits. Look for current listings of vintage memorabilia.