from New Zealand
Back in the 1980s I was involved in the campaign to isolate South Africa because of its racist apartheid system. Appeals for boycotts were made as the best way for those outside the country to fight what the United Nations called a “crime against humanity”.
The sports boycott was the focus because that was where New Zealand had its most important links with South Africa. However the economic and investment boycott increased in importance on the back of the sports boycott.
Consumer products from South Africa were targeted. Companies importing South African wine were picketed and normal business disrupted while people were urged to boycott the likes of South African guavas and dried apricots.
Consumer boycotts themselves are difficult to make economically effective but coupled with a little bit of creative shopping their effect can be dramatically multiplied.
People would go into supermarkets with their car key and quietly puncture the bags of dried apricots and scratch the labels on the wine bottles to make them unsaleable. People would also take packets of dried apricots from the shelf into their supermarket trollies and deposit them at the bottom of the deep freeze under the frozen peas.