You have many accessory options. A LBD (Little Black Dress) is so perfect for Christmas parties and can look totally different wearing it with a variety of accessories. Sounds like you are all set for holiday parties. Options are below:
1) A pair of ivory slingbacks with a black evening dress (to the knee) with black sheer pantyhose? I have a black fabric clutch with ivory fabric trim (nicer than it sounds) that I will carry with it.
Answer: Sheer black pantyhose will look better with black shoes. Ivory shoes will look good with ultra sheer, neutral color stockings and your LBD. Your black and ivory bag will look great with either color shoes.
2) Same LBD with red slingbacks that have a nicely dressed front (vintage looking) with a black woven clutch?
Answer: Red shoes can be worn with sheer black, opaque black or ultra sheer, neutral color pantyhose and a black woven bag with your LBD.
3) Same LBD with a classic black shoe and a few color choices for a clutch: silver, black, red, or black with beads?
Answer: Classic black shoes look chic with sheer black, opaque black or ultra sheer, neutral color pantyhose and a colored (red) clutch, silver or black bag / clutch with beads .