except their showplates and thus could fail your MOT as they wont bear the BSAU mark.
As far as I can tell, they do. Bottom right corner - 'BSAU 145d'.
Yes, Yes, I know, they still aren't legal and all that Jazz

except their showplates and thus could fail your MOT as they wont bear the BSAU mark.
I was just told today the reason why they want you to have the makers name/address on the plate. It's to help catch people who see your plate on a car they are driving, and decide to clone the plate to avoid paying fines, tax, etc. It gives police a way to follow up, as plate makers have to legally ask for proof of ID and logbook before issuing a road legal plate.
Every Halfords I've been in does numberplates, even my local tiny crappy one.
Think they're about £15 - £20 though (used to be more like £40). I can get them done for a tenner at a place in Newport.
Would you really want a big Halfords logo on the back of your plate though? o_O
I asked halfords a few weeks ago. They said its £13 each plate = £26 for both