Up until the early 1980s, Airfix used to include display stands with almost all their aircraft kits. These came in a range of sizes - the standard design was suitable for aircraft up to 1/72 Lancaster/ B-17 size, and there was a black stand for larger kits, up to 1/144 Boeing 747-size.
A few years ago, Airfix, in response to pressure from modellers, re-released these stands in packs of two, for IIRC, £1.99. Here's one of them supporting a heavily-modified matchbox 1/72 supermarine Walrus:
They were suitable for 1/72 models up to the size of a B-25 or a C-47, or most 1/48 single-engined WW2 fighters. Though no longer in production, you might sil be able to find them in LHSs with slow-moving stock. This same stand was also included in a limited edition version of their 1/72 Spitfire Ia, released in 2003 to celebrate the 50th Anniversary of the first Airfix Spitfire:
and which, again, it may still be possible to find in LHSs with slow-moving stock. This same stand is included in their 1/144 Boeing 314 Clipper kit which was re-released only a couple of years ago and which, though not currently in production, should not be too difficult to find.
That said, making your own stands isn't too difficult. I find that a plastic or wooden drinks coaster, with a piece of brass rod, bent to shape, and inserted ito a hole drilled in the model, works well for smallish models, such as this 1/72 Harrier:
or this 1/72 BAe. Hawk:
The materials for this kind of base are quite cheap, and wth a bit of practice, are easy to make and can be made to look rather good.
Cheers,
Chris.
Cute and cuddly, boys, cute and cuddly!