This article identifies a sub-category of norm contestation I've termed ‘norm weaving’, where actors contest the constitution of norm clusters, instead of the validity of individual norms. This occurs through processes of stretching or reproducing individual strands of existing norm clusters before weaving them together to create behaviour guides in undergoverned issue areas that are greater than the sum of their individual parts. I identify two examples of weaving in the world-leading actions of Fiji and Vanuatu around domestic climate mobilities. Using these two cases, we can see that existing models of norm dynamics need to be developed to better explain and understand weaving-like processes of norm contestation. There are two areas where norm weaving extends our understanding – in how clusters of norms emerge and change, and in how contestation applies to groupings of norms. Clarifying what norm weaving looks like in these cases could open the door to further examples being identified in other contexts and a more complete understanding of how norms operate in global politics.