Never used it and I've no idea if its any good but this has got to be worth a go:
https://www.amazon.co.uk/Derby-Shaving-Soap-in-Bowl/dp/B0083QT17Q?ie=UTF8&redirect=true&tag=ho01f-21
£2.49 DELIVERED!
https://www.amazon.co.uk/Derby-Shaving-Soap-in-Bowl/dp/B0083QT17Q?ie=UTF8&redirect=true&tag=ho01f-21
£2.49 DELIVERED!