I'll be there, barring unforeseen obstacles. Sounds like fun. Thanks for putting this together.
Another possible activity, perhaps the same day, is a tour of That Patchwork Place books publisher, Martingale Publishing, also in the Bothell area. If you take their one-hour tour, you can purchase their quilting/knitting/crafting books there for $5.00 each. They've got lots of quilts hanging throughout the tour. Must call ahead to arrange the tour as they won't run it for just a couple of people.
(I'd post their website but am having computer problem right now but I think it's just Martingalepublishing.com).