Azmeraw Zeleke, an Ethiopian machinist, has a startup that converts used mortar shells into coffee-makers.
He uses old mortar shells, which stand about one metre high, to make his coffee machines.
He cuts off the pointed ends, seals them and puts holes into the aluminium cylinder. The cylinder channels the water, coffee and milk.
He told me he got the idea nine years ago when he was doing maintenance work.
"I saw some shells being sold for a different purpose and I studied them.
"They were used for washing clothes or crushing things. After studying them I came up with the idea of using them as a cylinder for a coffee machine."
(via Afrigadget)
