A Giant Stormsmith Storm Tower

I was looking at Stormsmith Storm Tower and thought "what if this was bigger, like big enough to catch and store some lighting that you use to power a city block or a large castle/work shop" within the next week I'm going to try to make this'
Base is going to be a 48 oz Sunny D bottle inverted with the top cut off and glued to the bottom it's 1/2 inch small then a CD


haven't figure out the ball on top but probably  a foam ball covered in PVA glue

Any Ideas you have to make it would help