I can't seem to find this online but I found these in store for only £1.70. We were buying these in Sainsburys for nearly £3 before so seemed a good price.
It's cheap and cheerful stuff but nice enough especially for this price. I hope others can find in their locals - this was in Asda Cribbs Causeway Bristol.
Disclaimer - please drink sensibly - however you would probably need to drink a crate of this to feel the effects ;o)