One homemade costume for book week at school. It was really easy to do, just cut platic bags into the shapes you want and fuse them with your iron. You need to put baking paper over the plastic before you iron and don't put your iron on too hot. The tail goes off to the side to allow leg room. The picture was taken after a full day at school. The eye patch is a left over from my pirate outfit (I went in to school to read and had to dress up, too).
And here are our Halloween costumes, not home made but still great fun!