\%sFestival Combo“The Sands of Time,” teenage pop combo, will provide part of the entertainment at the family festival of tihe Builders, Austin Mason temple. Oct. 14. From left: Jack Meske. 17, guitar; Keith Magnus, 16. tambourine; Jim Truppo, 16. drums; Boh Sandess, 16. guitar, and with microphone, Steve Graham, 16. All but Truppo,5159 Potomac, live in Elmwood Park. Festival features square dancing from 8 to 10 p.m., “The Sands of Time” from 10 to 11:30 p.m. with a dance contest at 10:30; games and door prizes. Doors at the temple, 241 N. Central, will open from 7 p.m.