Okay, so there's no such thing as a permanent carnival in our fair city, or even a really decent arcade where you can drop the kids off for a couple of hours of fun that's also educational. (Is there such a thing, anywhere?) But we do have our very own professional children's theater company, a rarity in a city of any size. Childsplay has been around for 31 years, during which it's presented hundreds of kid-friendly plays and musicals that thrill children while also enlightening them to the joys of live performance. Childsplay's cast of regulars — D. Scott Withers, Debra K. Stevens, Jon Gentry, and the remarkable Katie McFadzen among them — have introduced several generations of youngsters to theater and given their parents a pleasant break from the usual mall-trawling and trips to amusement parks.