We all know our sweets. We all remember sweets - objects of pure delight and the endless cause of squabbles, fights even, hoarding and swapping; a chance to gorge, suck, crunch and chew. But they're by no means just a nostalgic thing of days past, and it's not only children who love and devour sweets - gobstoppers, bulls eyes, licorice, seaside rock, bubble gum and the like; grown-ups of all ages are partial to a good humbug, or a lemon sherbet or...