Say hello to Junior Miss, a 15-foot Indian python, and Iggy, a crocodile, at Reptile World: Part I of Children's Showcase '88 on Saturday at Wakefield Recreation Center, 8100 Braddock Rd., Annandale. Junior Miss, Iggy and other reptile pets will be on hand to charm children and their parents while their keeper, Michael Schwedick, describes the world according to reptiles. At the end of the presentation, guests will have the chance to touch Junior Miss. Registration is required. The program costs $3.50 for adults and $3 for children under 12. Call 321-7082.

Take advantage of bargains at the end of ice skating season. Buy next year's figure skating and ice hockey equipment Saturday at Skaters' Flea Market. From 11 a.m. to 4 p.m., shoppers may buy second-hand equipment at Mount Vernon Recreation Center, 2017 Belle View Blvd., Fairfax. For more information, call 768-3224.

Spend an afternoon listening to African folk tales with your child on Monday at Walney Visitor Center at Eleanor C. Lawrence Park on Rte. 657 in Fairfax. From 2:30 to 3:30, a county librarian will tell the folk tales in celebration of Black History Month. The program is free. Call 631-0013 for more details.

Area artists must submit entries for the Fairfax Council of the Arts Open Exhibition 1988 (formerly Area Exhibition of Paintings and Graphics) by Tuesday. Jack Cowart, curator of 20th century art at Washington's National Gallery of Art, will be juror for the exhibition. The exhibition will run from March 2 through April 28. Each winner will receive up to $1,000 in cash at a black tie reception on April 21. Call the council to request a prospectus and an application at 941-6066.

If sewing, woodworking, helping people or simply driving a car is among your abilities, consider donating your services through Arlington Citizens' Assistance. Drivers are needed to transport and distribute food at several Arlington sites on Thursday evenings from 5:30 to 8:30 p.m. Other persons who can sew or work with wood are needed to become resource teachers for special students learning new techniques. An Arlington Mental Health Program needs volunteers to lead a discussion group, help an art therapist or help in the kitchen during the day. And, to prepare a stream for stocking trout, anyone is welcome to take part in a cleanup project between 9 a.m. and 4 p.m. March 5. To find out more on these and other volunteer opportunities, call 558-2654.

Shake, rattle and roll with The Hubcaps, a rock 'n' roll band that specializes in music of the 1950s and '60s, on March 5 at Chantilly High School. Sponsored by the Chantilly High School Athletic Boosters, a volunteer organization, the show starts at 7:30 p.m. at 4201 Stringfellow Rd. Doors open at 6:45. Tickets are $10 and available now through all area Ticketron outlets, or call Teletron at 1-800-233-4050 and use a major credit card. Proceeds will be used to buy athletic equipment. To buy tickets by mail, send a self-addressed, stamped envelope and a check made out to Chantilly Chargers Boosters to: Hubcaps Concert, 13415 Pine Pitch Court, Chantilly, Va. 22021. For more details, call 378-4800.