The best and simplest British invention yet?

I needed a replacement incinerator. Fed up with holes that got blocked and created hazards, I thought I would try this one.

A hole in the bottom with a cage to stop blockages and a complete air gap round the base and we are away.

Heat contained. Air supply not compromised.

Result? Tons of garden wood cuttings and debris reduced to white ash in minutes. Greatly reduced possibility of accidents, and a clear garden. A winner all round.