Ageing pots with yoghurt

I am not one to try out many tips and tricks loved by Chelsea exhibitors - I don't really have time for putting bulbs in the fridge etc - but a brand new terracotta pot that's badly clashing with my more weathered containers has forced me to try the old natural yoghurt ageing trick (organic Yeo Valley yoghurt, of course).

At present the pot looks like my daughter's highchair after a particularly messy breakfast, but within weeks the yoghurt should have encouraged mosses and lichens to grow apace, banishing the current shade of orange which is the plant pot equivalent of a rather badly-applied spray tan. I'll put up the before and after shots in a fortnight or so.