OK we have a solar spark lighter - I have 2 of these and they are great
Ray Mears site says this about them
An interesting addition to your fire-lighting skills, the Solar Spark Lighter is the World's only pocket-sized solar-powered igniter.
Formed of a stainless-steel parabolic mirror, similar to the Olympic torch in Athens.
This lighter requires no maintenance and can be stored indefinitely.
It is designed to focus the sun's radiant energy to a point which can reach 1000 degrees. Simply place your tinder of choice between the points of the forked arm, point at the sun and it lights!
Not sute what i am after but i love gadgets so make an offer
Ray Mears site says this about them
An interesting addition to your fire-lighting skills, the Solar Spark Lighter is the World's only pocket-sized solar-powered igniter.
Formed of a stainless-steel parabolic mirror, similar to the Olympic torch in Athens.
This lighter requires no maintenance and can be stored indefinitely.
It is designed to focus the sun's radiant energy to a point which can reach 1000 degrees. Simply place your tinder of choice between the points of the forked arm, point at the sun and it lights!
Not sute what i am after but i love gadgets so make an offer