The weekend after next, Macrina Bakery is holding a series of hour-long gingerbread homebuilding workshops, and all the proceeds from the event will go to the Seattle Children’s Home. Twenty bucks gets you a kit (something a little simpler than the house above, I believe) and guidance from the gingerbread construction crew. Prefab architecture is all the rage.The dates:Location: Macrina’s McGraw cafeSaturday, December 15Workshops at 3:30, 4:30, and 5:30 p.m.Location: Macrina’s Belltown cafeSunday, December 16Workshops at 3:30, 4:30, and 5:30 p.m.To reserve a space, call 448-4089. Side note — having just tasted one of Macrina’s gingerbread cookies, I can say: It’s good stuff.