There are times when we don't want glitter or ruffles or confusing designs splattered all over our kids' clothes. That's why we love Primary. Their clothes are basic and simple and can be worn over and over again. Another reason we love Primary? They're also making Halloween easy by inspiring parents to take matters into their own hands to create clever and adorable DIY Halloween costumes without having to pick up a needle and thread. Best of all, the costumes can have a second life—the hoodie your little guy wore for his dragon costume can be the same hoodie he wears to school the following week — minus the scales, of course. Scroll to see our favorite Primary DIY costume picks, along with details on how to make them and where to buy the essential pieces.