British inventions

In fact, here is a whole wikipedia page of Scottish inventions and discoveries - including the pedal bicycle and the pneumatic tyre, the adhesive postage stamp and the postmark, the Kelvin unit of temperature, and finger-printing criminals - and more recently, the first cloned animal (Dolly the sheep).

Postage stamp!
Have you seen the Dragons Den game? It sort of gives you outline details of an inventions and then you have to invest in whether you think it will succeed or not. It might be a fun thing to play with the class. You could edit it to just have British inventions and it would give you some really recent ones.
Eli Roots reggae reggae sauce!!!!!

lisalou
Don't forget to tell your students that Great Britain is accredited with more inventions than any other country in the world.

And inoculation.

The computer (Babbage and Lovelace).

The jet engine, invented by Sir Frank Whittle. Without it, the world would not be our oyster.

Waterproofing fabric, invented by Charles Macintosh, a Scotsman

Not an 'invention' exactly, but the start up of the NHS and how it has changed lives.

There's one invention that has changed some GNetters lives,
Hip replacement

Penicillin!