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Universal cup lid

Because drinking cups of different sizes shouldn't need different lids

jacobJacob
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Know how a camera lens has blades that glide over eachother to adjust the diameter of the orifice allowing light to pass through [needs better grammar]?
How about we reverse that and fasten blades to a center point, such that them gliding across eachother adjusts the total diameter of the assembly?

That would net us a cup lid with a continuously variable diameter.

Lost a regular cup lid? Not to worry!
Got a cup but no fitting lid? Not to worry!

Licenced as CERN-OHL-S-V2
https://ohwr.org/cern_ohl_s_v2.pdf

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