Whether you're throwing a 20's-themed costume party or a glammed out New Year's Eve bash, these dramatic homemade centerpieces will add pizzaz to your party decorations. Great for indoors or outdoors, use these glitzy party accessories to adorn tabletops, drink tables and more!1. Use two-three packs of water beads to fill up the giant martini glass.2. Mix the flapper pearls into the glass with water beads and let them hang from the side.3. Arrange ostrich feathers and peacock feathers in the…