IOWA CITY — The Jedi Juice, Wookiee cookies and Death Star doughnuts were set out at the Ronald McDonald House in Iowa City, with Star Wars crafts arranged on tables. Families — who stay at the house while a child is being treated at the University of Iowa Stead Family Children’s Hospital nearby — had just started to gather when the stormtroopers and other costumed Star Wars characters arrived.Faith Kirgis, age 2, was there with her mother Michelle.