A twist on the traditional is suggested for holiday tree decorations this year. "Part of the fun in decorating for Christmas is doing the unexpected," says Bette Rosenberg, home fashions director for Spiegel, catalog merchandiser and marketer. Some ideas for decorating the tree:- Dolls with checkerboard dresses, stuffed animals and miniature wooden rocking chairs.

_ Snowmen, gingerbread teddy bears and wood crayons.

_ Birds-of-love ornaments and hand-painted angels.

_ Clowns in black and gold lame costumes and twinkling glass ornaments.

_ White pine cones, sleighs and doves.

_ Candles, baskets of flowers and carousel horses.

_ Blue and gold ornaments and white candles.