A simple one that's always well received at our house is as follows:
20 small (little finger size) dill pickles
2 packages thin sliced dried roast beef
1- 8 ounce package cream cheese
1 package multi-colored round toothpicks
The dried beef we use is slightly spiced and the slices average about 4 inches wide and perhaps 6 inches long. Cut each one in half, place a healthy dollop of the cream cheese on each slice and spread evenly. Place one of the pickles at the end of the slice and roll, fastening with a round toothpick. We've also used the small sweet pickles for the filling, but seems most like the dills. Place in a container in the refrigerator until needed... they disappear in a hurry...
Here's the dried beef we use, as an example:
http://www.harringtonham.com/prod.cfm/cid/5/pi d/95/pp/1
I'm sure a similar product is available in the U.K.
Best of luck!