>>6993895Ocean Designs has done a set of their dry-transfer decals for PotP Optimus. They're basically the best thing you can do short of actual tampographs, they usually look very nice when applied. No idea if they're planning sets for more of the PotP characters, but it seems like they could make a lot of money fixing the corners that Hasbro cut.
https://www.ebay.com/itm/Ocean-Detail-Decals-for-Power-of-the-Prime-Optimus-Prime-In-stock/263709361597?hash=item3d664d85bd:g:g6AAAOSwEm1bBnym 