goatsbeard

Those of you, who follow the Olympics in London might have stumbled upon this:

Source: Wikipedia

It's the Royal coat of arms of the United_Kingdom, for example decorating the Buckingham palaces' gate. And has been in many TV images covering the present event.
And yes, you looked right. The righthand horse carries a horn on his head. Even more: From the pose (front legs in the air) it's the same horse as the one in front of Hannover's university. Right: No surprise. From the 17th century on British kings have been from the House of Hannover and for a period also were kings of Hannover in personal union. Even though they changed their name, the royal family are decedents from this hannoveranian line.
The must have thought: saxon steed, cool but what would be cooler? Indeed, let's make it a unicorn.

Interestingly there's controversial information on the internet. The German wikipedia entry on the horse claims it's connection to the coat of arms, whereas the english sites say the horse is scottish. So no connection to the saxon steed. From 1714-1837 the coat of arm carried hannover's white horse, but without the unicorn. This feature has since been removed, adding the unicorn.
We're no expert on heraldry but above unicorn definitely seems to be influenced by the saxon steed.

But if we were, we might have noticed the split hooves and the goatsbeard. A feature introduced to unicorns from greek mythology (Next time a horn alone won't do). Additionally there is this crown shaped lead, the unicorn is leashed to the ground by. No one captures a unicorn, except for the Scottish.  James I. in early 16th century introduced the unicorn to his coat of arms, as king of England with scottish origin. This version was the base version of the one pictured above, reintroduced by Queen Victoria. So no saxonian unicorn. Sorry.

Further observation:
The two lions guarding our universities gate are definitly relatives of those two pictured above. Only difference seem that hannover's versions are proud of their manes, whereas the coat of arms ones are wearing crowns, supposedly to cover some bald spots. Poor things.