These little items are called Pattens. They're overshoes worn over the everyday footwear to prevent them getting covered in all the muck on the city streets (including human effluent and animal dung!). They were made from wood and leather. Not taking your pattens off when entering a house was deemed rude and inconsiderate.
I'm not known for making my own minis but on seeing a pattern recently in a Miniature magazine I decided to have a go at these and I'm pleased with the way they turned out.