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https://bombshellminis.com/36021-helmet-set-r10/ (example, look through the shop to find more.)

Not sure which fit, though.

The Old Glory merc also can be ordered with Bubble Helmets. Quite costly though if you only want the helmets.

https://www.oldglory25s.com/index.php?cat_id=819&catname=%27Aliens%20And%20Spacemen%27

'Savage retro space barbies' has a nice ring to itby the way.
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