A print-in-place Viewmaster lid that replaces your old one.
Here's the single one-print piece:
https://www.printables.com/model/303021-willy-wonka-everlasting-gobstopper
If you found this useful, it would bring me great joy to see your work - so be sure to share. :)
Or, just buy me a coffee:
https://www.buymeacoffee.com/Julius3E8
OR… better yet, please feel free to dump a bitcoin or two here:
1Py3TUeR8noBN2giHyFV1GfB6x3Kh2WEVv
... include a note to the effect of "Hi Julius3E8, thanks for the [insert name of thing]... my life has improved five-fold on account of it and please accept this paltry amount in gratitude".
You're welcome! (in advance) :D
Also, feel free to peruse my other submissions which are almost as varied as they are many:
https://www.printables.com/social/320993-julius3e8/models
http://www.thingiverse.com/Julius3E8/designs
Enjoy!
The author marked this model as their own original creation.