Pumpkin Spice Bath Bombs

From the blogger: "Slip into a bath scented like a pumpkin pie with these easy, homemade pumpkin spice bath bombs. Who else is all sorts of excited that it is officially pumpkin spice season? I, for one, can't get enough pumpkin spice goodness. I’m talking pumpkin spice lattes, pumpkin doughnuts, pumpkin bread, pumpkin spice cupcakes, pumpkin pie spice bath bombs… Wait. What? Yep, this year you’re going to surprise all your pumpkin spice obsessed friends with these awesome pumpkin spice scented bath bombs."