.....the autogyro from James Bond, of course!....
If not, they have some in one of my local Poundland stores. The model appears to be diecast, with a plastic 007 pilot and rotors etc. It appears to be roughly 20mm, maybe even true-25. Sadly I didn't have my usual 28mm Foundry comparison figure with me, so I can't be sure. Even so, it may still be useful for Bond, Mad Max style games etc.
It's a very nice little model and I'm sure many will find a use for it.