Let's do it! I propose going to the Grant Museum of Zoology at 2pm one Saturday and then optional decamping to a cafe afterwards. See the museum's website here:
www.ucl.ac.uk/culture/grant-museum-zoologyThe Grant Museum of Zoology is FREE and nearby tube stations are: Euston, Euston Square, Russell Square, Goodge Street, Warren Street. Nearby rail stations are Kings Cross St Pancras and Euston.
My hope is that Saturday is generally a good day for people, the museum is sufficiently centrally located, and 2pm will allow people time to travel either side if they want to come into London specially. I've put up a poll so please vote for which dates you'd be available and we'll see which is most popular. I have shamelessly edited out the ones when I'm unavailable in advance!
All Mustachians are welcome, and I promise to arrive first and devise something very ostentatious to wear or hold so we can recognise each other.