Well, the children are to go to a Knights & princess party tomorrow, so it was up to me to make some costumes. My little one is only 2 so she can wear just a hat. So I made one with a huge bit of card, stuck on a bit of pretty fabric for the veil and put a bit of marabou round the bottom.
For the knights costume, I made a patchwork of yellow/blue to make a tabbard and just sewed the sides & shoulders. For the helmet, I duck taped a big bit of cut card and drew some airholes on it.