I've seen lots of cards made using a windmill template and thought I'd have a go at making one myself and hadn't realised how easy it is to make.
Cut a piece of paper into any size square. Make 4 slits in the corners two-thirds of the way in towards the middle and make a hole in the centre and another on each corner.
Then basically turn all the corners with holes towards the centre and place a brad through all the corners and then through the centre hole. VoilĂ !
I haven't created a card with one yet.....so watch this space!
Thanks for looking