Who says you can't have it all in L.A.? During the Kidspace Children's Museum's annual Snow Days celebration, kids can run amok in a real winter snowscape, with all the attendant snowmen, snowball fights and snow angels that come with it. Rounding out the season's offerings are a host of winter crafts, including snowflake making, pine cone ornaments and cookie decorating. Kidspace Children's Museum, 480 N. Arroyo Blvd., Pasadena. 9:30 a.m.-5 p.m. Sun.-Mon. $10 for adults and children older than 1; members free. (626) 449-9144. http://www.kidspacemuseum.org.