First of all, we need to fold both sides of the Waves shape (where the red triangles are) in a zigzag
This is important!
We want the waves to have some room to move, so we’re NOT going to glue all along the window. Glue the top part, till about 4 cm from the center fold.
Now we add the popping bits and we’re done. Nearly there…
(you know the drill – we continue in the next post)