Hi Pol,
Being in the UK, you can get a burgee by writing to Iain, our treasurer, to let him know your mailing address. The cost is £15, which can be sent by PayPal to treasurer@junkrigassociation.org. We also now have house flags, for the same cost.
For folks in other world regions, flags can be sent from the USA or from New Zealand – the updated version of our Junk Shop burgee and flag information is just about together, and should be posted soon.
Zazzle does not do flags, but thanks to Annie Hill doing a significant amount of work, we now have these!
Shemaya