A few days in advance, fill two rubber gloves with water and let them freeze to ice hands in the freezer.
Put the sangria, vodka, forest fruit liqueur and fruit juice in a large container and mix. Then add the berry mixture. Pour off the litchis and press the blueberries into the pitted litchis as pupils. Add the litchis and the remaining blueberries to the punch. Finally, just before serving, add the Rosa Hugo and the ice cream hands to cool.