We actually got organised for World Book Day costumes this year with more than a day to go. This meant everyone had something half decent for a change. My daughter decided to go as Katniss from Hunger Games which meant simply buying suitable
normal clothing and just adding a Mockingjay pin. She also had a black backpack and made a fake knife:
My son dressed as his favourite demi-god Percy Jackson. I made a shield out of cardboard. There was a picture of Medusa's head on it. We bought an orange t-shirt and I ironed a Camp Half Blood motif on to it. He just had to dig out a sword to finish off the outfit: