So I am trying to figure out how to make the fish bowl part of the DNA donor modules, shown here:
I need the fattest part of them, to be no less than 4.3" wide (to fit my custom figures - some with their knees bent). 4.75" wide would probably still work, but larger than that would probably be too big. 90% of them would easily fit in a 4" diameter globe, but some have tall helmets/hats. Since it would have to be open at both the top and bottom, I feel like vacuum-forming is out of the equation. I have looked into going with the other shape shown (in some of the shots from the comic, which is more of a half globe or dome with an opening at the top. I ended up getting some lids for "froze coke" or slurpies that are just too narrow to work (4" at their widest point).
I can't use anything glass, as there is no good way for me to cut a glass globe-like object.
Any thoughts or ideas are appreciated!

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My first thought is clear plastic Christmas ornaments balls. Don't knoworry if they make them that big though. Might have better luck finding them closer to the holidays.

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Because of the size needed, I thought there might be some kind of product packaging PET that would work, but I haven't seen anything yet. I do have vacuum forming PET sheets, but I don't think that will help me here.

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could you sketch out the shape/shapes that would work. i'm having trouble seeing what your after in the art.

my first thought was tennis ball tubes, but they are too narrow (if i'm following correctly!)

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ever look around this site? https://www.sciplus.com/

https://www.sciplus.com/p/CLEAR-PLASTIC-PARTY-FAVOR-TUBES_56958

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I looked the site over, and only saw one thing that gave me an idea, but it is "out there"! lol Looking through the robot section, I saw a rounded wheel... that made me try to think of how to vacuumform all the way around it.

I will sketch something up, today and put it on here!

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Here is another pic:

In that pic, the tanks have a metal band around the top and middle, which is probably the route I will go, so as to hide a joint. I think I am going to go the Christmas ornament route, that Dan suggested. I found a pack of 12 for less than $20 on partyspin.com! And the sizing is perfect. I will use the extra globe to help create a jig, to cut the rest with. I am going to have to cut the height of each half down, but It is definitely doable for me, with the equipment I have at my disposal.

Here is the diagram, of what I needed:

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Here is what I am going with:
http://www.partyspin.com/Fillable-Plastic-Clear-Ball-Ornament-XX-Large-4-p/fns003628clr.htm

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Here is a quick representation of the two options, I am choosing between, of the different ways they presented it in the comic - with my largest and smallest figures inside:

What boggles my mind, is how many different ways they presented the same thing. There are technically 5 completely different looks to the same tanks. There is the fishbowl representation, with and without metal bands, the dome with and without bands, and another dome with a metal shroud at the bottom.





I am leaning towards the fish bowl style, as it will allow me to use a smaller base, which saves space in my dio (and room for that matter!)

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I've seen clear cereal bowls at Wal-Mart.

That might be a way to go.

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I think the smaller size idea to save space is a good call. I'm impressed with how much research and detail is going into this and I'm looking forward to how it turns out.

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cool! I bookmarked that site with the ornaments. last year my wife paid $1 each for some of the smaller ones and but fake butterflies in them.

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Thanks Dan! I have been thinking about this dio for a couple years now, but needed those bossfight skeletons to come out, before i could really move on it.

2DARK2C, yes the prices are really good!

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I think you could use the upper portions of a 2 liter bottle, maybe. I don't know if they are 4 inches in diameter or not, or if they are clear enough for you, they can be foggy some times.

That was actually the first thing I ever tried... definitely too small. They are just a hair shy of 4" in diameter.

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