Rubber-band Powered Butterfly

Step 4 Design the wings

I was aiming for a butterfly style, but you might want to use different-shaped wings.

I lay the frame on the paper, and sketched roughly what I wanted the wings to look like. When I was happy, I firmed up one side of the butterfly in marker pen, allowing for tabs to fold over and glue.

I then folded the paper in half to cut it out, thus making two identical-but-mirrored sets of wings.