http://www.sassystyleredesign.com/2013/12/85-new-years-eve-ideas-for-kids.html
http://www.growingajeweledrose.com/2012/12/new-years-eve-activities-for-kids.html
Glow sticks!
http://craftibilities.blogspot.com/2013/01/best-new-years-eve-ever-fun-games-and.html
New Years Tree
I think this idea is great! Take down your Christmas ornaments and decorate your tree for New Years Eve instead! Kids would love getting to decorate the tree all over again. This would be such a fun tradition! Take off the Christmasy stuff and fill the tree with noisemakers, confetti bombs, balloons filled with fortunes or coins, party hats...you could fill in empty spots with metallic ball ornaments and ribbons. By the time your celebrating is done, the tree will mostly be undecorated again as guests pull off a noisemaker or hat to party with.
4. You can have "fancy" glasses with milk and cookies!