Mayflower

A little salesman came today and of course I bought mayflowers, a tradition in Sweden
Wikipedia:
Majblomma (English: Mayflower) is traditional Swedish charity pin sold by schoolchildren in April-May every year since 1907; originally to collect money for people suffering of tuberculosis. The Majblomma is of different colour every year. It was founded by Beda Hallberg from Onsala.