Résumé : European capital cities are replete with material traces of colonial times, not only institutional reminders but also ephemeral objects, created to glorify colonial domination. Reactions of descendants of former colonisers to these traces suggest that colonial tropes are still present in their contemporary imaginary about the past. A comprehensive effort of decolonisation, therefore, needs to aim not only at including previously despised minorities, but also at raising majorities’ awareness about the aggressive side of leaving the permanence of material traces of colonialism unquestioned. Moreover, this awareness of implications of material traces could help to redesign European physical contexts to become more welcoming places for descendants of former colonised groups. Our research explores reactions of different generations of descendants of Italian colonisers when presented with an ephemeral trace of past violence—a candy still sold with a colonial wrapping. About 175 participants were presented with the image of the candy, either wrapped in its original colonial package or a neutral one. The image was followed either by a brief explanation of its colonial meaning or not. Reactions to such an apparently inconspicuous reminder of the Italian colonial crimes—still self-censored in the social representations of the Italian national past—proved to vary across experimental conditions and different ages of respondents. In particular, when questioning these ephemeral traces of adult participants show more intense group-based negative moral emotions. Relations between the generational renewal of former colonisers’ group and collective elaboration of intergroup violence are discussed.