The Tube seat fabric is known as moquette, a mix of wool with a small percentage of polyester, and well known for its hard wearing, durable, fire resistant and not-showing-the-dirt qualities, is still woven in Yorkshire. You can buy dog collars and coats using the fabric at the London Transport Museum, as well as furniture, cushions, technology cases, bags, handbags, key rings, wash bags, etc made using moquette. These are made in England by Matt Fothergill using moquette fabric. Whilst a lot of stuff in the London Transport Museum Shop is made in China, they do stock a very good range of UK made products too – http://www.ltmuseumshop.co.uk/moquette.html
It should be a relatively simple matter to buy Mugs, Pottery, China and Glass Ware made in the UK. British pottery is the best in the world and some of the industry still survives today. That said you’ll have to shop around, use the internet, and look carefully at back stamps for the words ‘Made in England’ or similar as a lot of pottery for sale on the high street these days is foreign made.