Ade Smith wrote:
The flex near the plug has failed on the wifes (!!) dyson resulting
in an intermittant connection (and a small spark)

Normally, I would just cut the plug off and fit a new one, but SWMBO
insists on retaining the yellow rubber plug! Does anyone know where
I
can get a retro fit yellow rubberised plug to "suit" the dyson?

Thanks

IIRC the dyson web site has the lead complete with plug, otherwise
paint it!
I suggest that you get a new lead as the dyson flex usually breaks
near the machine, so yours is probably not long for this world.

MrCheerful