Anti-apartheid supermarket price tags for products covered by the BDS boycott (Boycott Divestment and Sanctions). These are Sainsbury's (and currently Sabra) specific but I plan to make them for other supermarkets and products over the weekend and they'll all be available to download and print from my website here.
According to the BDS website "Sabra hummus is a joint venture between PepsiCo and the Strauss Group, an Israeli food company that provides financial support to the Israeli army."
These were inspired by Russian artist Aleksandra Skochilenko's interventions using supermarket price tags to spread information about the Russian invasion of Ukraine. She was recently sentenced to 7 years for "knowingly spreading false information about the Russian army”.
I placed some of these yesterday, it's surprisingly easy to do, doesn't draw much attention and they were still up today. Since nothing is damaged or taken out of the store it's very low risk (in the UK at least)