This weekend's Cain Park Arts Festival includes artists who work in a variety of media including painting, watercolors, printmaking, photography, sculpture, ceramics, jewelry, wood, leather, glass and other materials. This year's edition takes place from 3 to 8 p.m. today, from 10 a.m. to 8 p.m. tomorrow and from 11 a.m. to 5 p.m. on Sunday.