I often take steamed veg sticks or or mini veg like baby corn, mange tout, mini courgettes. Or tuna, mayo and sweetcorn sandwiches. Cream crackers and cheese and tomatoes. Sometimes pancake or ricecakes. And fruit like berries he can pick up individually. It's normally lunch we're out for. Sausages aren't too messy but not too often as they are quite salty I think.