Step 2: Cutting out the pattern
First thing your going to do is cut out the unnecessary pieces as shown in the picture. Once that is done. there is several ways you can put the pieces together
Glue the end pieces together to form a circle, use the tape to hold it together while the glue is drying. once the Glue is dry, begin gluing all the pointing pieces together, it should take look like a half sphere once you are done. look at the pictures for references( i took the Twine route).
Optional Route: Twine and soldering Iron
Stitch the end pieces together to form a circle, Then use a Soldering Iron to poke holes into the foam, it will make it a lot easier to stitch. if you don't have a large needle, use tape and wrap it around the end piece to form a sturdy point, that will make life much easier. once that is done begin stitching all the pointing pieces together, it should take look like a half sphere once you are done. look at the pictures for references.
Repeat for bottom section.
once your done with top and bottom section, it should look like GIANT blue pill.