UPDATED 03/08/2024 (March 8th, 2024):
I thought it would be nice to make a helmet for our favorite dumb@ss. Based off of LCDR Heatherly's helmet from Top Gun, feel free to slap this helmet in any of your RIO seats. That being said, please download from here, instead of handing it out to your friends. Thanks!

To Use:
Once you've downloaded this helmet, rename the files inside however you wish.
Choose a livery to insert the files in to.
Next, update the description.lua of your chosen livery to include these lines;
    {"HB_F14_EXT_RIO_HELMET", 0 ,"HB_F14_EXT_RIO_HELMET_JESTER",false};
    {"HB_F14_EXT_RIO_HELMET", 1 ,"HB_F14_EXT_RIO_HELMET_JESTER_NRM",false};
    {"HB_F14_EXT_RIO_HELMET", ROUGHNESS_METALLIC ,"HB_F14_EXT_RIO_HELMET_JESTER_RoughMet",false};
Replace the "HB_F14_EXT_RIO_HELMET_JESTER" with whatever your filename is.

Thanks to LanceCriminal86 and ben_der for assistance with details!