Yes, I was amazed that our 24-hour Tesco superstore has two types of Arnotts Tim Tams right next to Kwik-Kraps, aka Kit-Kats, and so I bought some packs! There is the original and the caramel versions. They taste much like Penguin biscuits but more smoother choccy. Two packs disappeared in minutes!
http://www.dooyoo.co.uk/food/penguin-biscuits
So, if Ms Frying Pan needs any we will send 'em over from Blighty post-haste!