Surely they mean what they said which was 'dark chocolate tim tams', not dark chocolate AND ALSO tim tams? I've only ever seen regular, milk chocolate and caramel tim tams for sale in the UK, never the specialty flavours. Where have you seen flavours other than those in the UK?
Paw paw cream is a good alrounder ointment for insect bites, minor scratches/burns and dry skin
Allens lollies (sweets) especially snakes alive , jaffas (chocolate balls with a red coating and an orange flavour, similar to a chocolate orange), minties (mint flavoured, chewy sweets), cheekies (chocolate flavoured jelly babies) an pinepples. Eucalyptus boiled sweets are also something different and various alternatives are great if you have a cold/blocked nose.
Eucalyptus and also tea tree oil are also great as antiseptic, minor scrapes/cuts/bites and removing sticky labels from things
Most suggestions above can be bought from a supermarket such as coles or woolworths or the medical things from chemist warehouse.