Polish workers in the UK are set to show their contribution to Britain on Thursday through a mass-blood drive initiative.
More than 2,400 people have said they will take part in the Facebook group promoting the event:
The plan has the support of dozens of Polish expatriate organisations, from student associations to a Polish branch of the Royal British Legion.
The idea arose in response to a campaign for an unofficial strike by Polish workers organised by the Polish Express newspaper to protest the way immigrants are blamed for the UK's economic difficulties.
However, the strike idea looks set to be a damp squib, since workers have been warned that the protest, which is not backed by trade unions, may be risking their jobs. Only around 1,000 people pledged to take part on Facebook.