Another popular summer home décor trend is adding metallic design elements. Metallic elements include bronze, copper, gold, and rose gold. You can implement metallic properties in décor pieces like candle holders, picture frames, accent pieces, and serve ware. If you are feeling crafty, you can even try your hand at a DIY project. Grab metallic spray paint from your local craft or hardware store and upscale some older décor pieces and give them a shine.