British sweets NOT sold in Australia?

And the reason why the chocolate tastes different is because it it made from a different recipe to allow for the much higher continuous ambient temperatures in Australia.

You would have to give us a list of the possible sweets that you might want to send, then we can tell you if they are not sold in Australia.

Otherwise its rather like the "Yes Minister' situation: "I can't tell you what you don't know Minister because I don't know what you don't know"

I have never seen many traditional English sweets in Australia, so anything traditional or 'old style', and stuff like sherbet lemons, wine gums and pear drops would probably be a novelty. I'm not entirely sure what sweets are available in England, so I can't really compare, but that would be my guess. Maybe boiled sweets too?

Just about any British sweets would be fine. The only place one can buy British sweets here are at specialist shops, which are few and far between. Even the British Cadbury chocolate tastes different to the Aussie version.

Ok, you are asking the Australian's, so how on earth do we know what lollies are sold in the UK compared to what is sold here? Ask your sister what she wants, simple.