Chuck a paper doilly on top of your sponge cake and sift icing sugar / cocoa powder over the top to get a fancy pattern :)
Send a proper old fashioned lightweight brown paper parcel complete with that lovely red and white string.
How to erect a tent (not like this).
How to grow a lush brightly coloured hanging basket like this!
A plate of edible flowers on a salad
Some must haves for a proper picnic, including glass wine glasses and china plates, a thermos of tea and some wrapped bottles of booze in damp newspaper, some good chocolate and biscuits!