Why don't you consider organising one? You need a suitable pub, time to sit at a table and something recognisable to place in the table. You could always ask those local to Brum and interested to pm you and look at arranging for 2 or more of you to meet without posting on the forums first then have a second meet and share it on the forums. You might like to post on fetlife too. It's worth looking at how folks organise munchs on fet life.