In late January, the Saint Paul Winter Carnival will be constructing a massive ice castle to dazzle all who visit. Before that massive project gets underway, folks will be creating their own magic structures out of sugar cubes. Saccharine architects are welcome to work solo or in teams, and flashy digs using movement and lights are encouraged. The results will be showcased this Tuesday at the Midpointe Event Center, with all proceeds benefiting the Saint Paul Festival and Heritage Foundation. The party will also include drinks, food samples, and live music. Find tickets at web.saintpaulchamber.com.