Quickboost has added a set of headrests for the Eduard 1/72 Hellcat F6F to their line of aircraft accessories. They are molded in cream colored resin, smooth, seamless and bubble free.
This set of headrests covers all of the different variants of the F6F Hellcat. I went looking on the internet to see if I could find out which headrest went to which Hellcat. As far as I could tell, the one on the left would go to the F6F-3 while the one in the middle would go to an F6F-5. I couldn’t find anything about the far right one with the larger cushion, but if the aircraft you are modeling needs it, there it is.
Quickboost recommends the Eduard kit for this set, but it could probably be fitted to any other brand of kits. Looking at the Eduard kit part, you will need to scrape off the headrest since it is molded directly to the rear bulkhead.