A bit of an unusual item this, but I'm quite happy to have found it:
(http://i772.photobucket.com/albums/yy3/MarcoSkoll/IMG_3725_800.jpg)
A casual glance would probably assume that this tape measure is in inches and centimetres, but it's actually in inches and half inches - it's a specialist "centring" tape measure intended for quickly finding the halfway point on a table/door/piece of wood/etc.
Essentially, this is my cheating answer to the common practice of using half inches to the "yard" in 28mm scale games. I'm hoping it'll be a useful gaming aid - although the halving/doubling* isn't too difficult as mental maths goes, this just eliminates the effort/time/errors entirely.
* I know some people have 28mm scale reference sheets which have all the distances converted, but as someone who switches between scales, I just get muddled up doing that.
Unsurprisingly, this oddity hails from the US (the idea of a tape measure in only inches would be quite quaint in the UK), so I had to have it imported, but this is an increasingly global world; Amazon US managed to have it shipped to my door in only a little over a week (and that was the "Economy" shipping option).
https://www.amazon.com/dp/B0000CEZ8Y/
I had always assumed people used cms rather than half inches for Inq28 measurements?
I've almost never played it in centimetres (which seems to be more common outside the UK). Every INQ28 event I've been to has preferred half inches.