Paper and cardboard, I used only paper this time but I suggest using cardboard too(not too thick cardboard though).
wire (you can use a paper clip)
(I used white paper but you can use any kind of paper and it looks better).
Step 1: Get started
Put it on the cardboard and trace around it, cut it and with this pattern trace another 2 circles in the paper and cut them too. In the pictures i just do this on paper but cardboard works best and the paper will be just for decoration.