A 40x40mm fan cover with the best of both worlds (Radioactive and honeycomb). The honeycomb is to keep as much airflow as possible pass through the fan cover/grill.
There are 2 versions, both work the same it's just a matter of preference/taste:
-Slim: Bit smaller dimensions of the honeycomb
-Bold: Bit larger dimensions of the honeycomb
Compliment it with:
5015 fan cover Radioactive/honeycomb
https://www.printables.com/model/918192-5015-fan-cover-radioactivehoneycomb
Ender 3 V3 SE knob Radioactive Knob
https://www.printables.com/model/905121-ender-3-v3-se-knob-radioactive-sign
Extruder Indicator Spinner Ender 3 V3 SE Radioactive Sign
https://www.printables.com/model/897999-extruder-indicator-spinner-ender-3-v3-se-radioacti
The author marked this model as their own original creation.