These punny costumes are ones that you won't forget. If you've been too busy to actually get your Halloween costume, fear not. There's still plenty of last minute Halloween costume ideas you can DIY that will have you looking decadent. This Greek yogurt getup is probably one of the easiest DIY Halloween costumes on our list here. To recreate this look, you'll need a bed sheet to wrap like a toga and and a sash with yogurt written on it.