Tia Maria - found in a few stores. And half of them had a promotional neck collar on, that states if you pop online and enter a code you get a free pair of mini Babyliss straighteners.
I was buying Tia Maria anyway so this was a huge bonus for me. And i can confirm that it was completely free. No paying for postage etc. I entered a code and my details and then had an email confirming I will be receiving them within 28 days. Brilliant! :) This offer is online too but it can not be guaranteed that you will get a promotional collar - but you could ask in the notes for them to ensure you got one?
Amazon, Tesco, Argos, Boots etc have these for around £10 so its a nice little freebie in my opinion.
I have searched for this offer and found it a month ago but it was expired. But i had been in 2 tescos and saw it in both so have posted a new post to let others know.