I just got SS86 Skywarp the other day. I decided I wanted to go ahead and swap his face with Thundercracker's, since they fit so much better that way. Thundercracker's face popped out with minimal effort using a plastic spudger, but I'm having a lot of trouble with Skywarp. I can see my spudger bending and starting to get stress marks, so I don't think that's going to work. I tried a pair of metal tweezers that are on the thick side and very smooth without any sharp points. I've used as much force as I think I can without breaking something, but it still just won't pop out. Is there some trick to this? Unless there's something I'm missing, I might've just gotten one that's extra glued in place.
Edit: And just like that, after I give it one more try with a different spudger, it suddenly pops loose. I now have a serious Thundercracker and a grinning Skywarp, just as Primus intended.