At this time of year, ice lollies! Home made free ones, usually (made with Tesco Mexican lime cordial), but I also love the Waitrose Cloudy Lemonade ones at 3.5 syns.
Clementines are another current favourite, or carrot sticks. Can't imagine eating potatoes as a snack - for me, they are for mealtimes. And I would never eat mugshots at all - hate them.