bush with faux fireworks
How about just paper towel roll cardboard, and toilet paper roll cardboard, most of us have it around, thicker than poster board. And just plain wood sticks/ branches for the dowel stick. Now just buy, or use your handy spray paint... add sparkles or sparkley streamers out of the bottom...or those little fairy lights out of the bottom. We do not have a covered porch, so all has to be water proof, here.