I'm making guacamole with some local avocados (CSA basket = yay) and picking up a bag of pork rinds to dip into them.
If I were hosting a party (I'm not - we're partywhoring and going to 2 different ones, or that's the plan anyway) I'd also make cream cheese filled bacon-wrapped jalapenos, baked cheese crisps (might still make those to bring - yum), and this stuff http://www.joyfulabode.com/?s=primal+party+foods&x=0&y=0
Also hot wings (w/homemade ranch dressing to dip) are always a good choice - I don't want to make them and bring them to someone's house though because they'd get cold on the way I'm sure.
You could make meatballs in a non-sugary sauce...
tons of good stuff.