These octagonal Fired Earth marble tiles were second-hand although they hadn’t been used: they were left-overs from somebody else’s project. I saw them advertised on ebay and bought them for £49 – a fraction of the price of buying new from the shop.
I bought them for the utility room but they were so nice that we decided to use them for the hallway instead. Luckily they survived 6 months of being stored in the garden.
There were just enough for our purposes, with a couple of the little squares left over that we can use as coasters!