May be the most laziest customs I've done... certainly the easiest.
Spraypainted a classics Optimus dusk grey (or something like that) and a Battle in Space Rodimus with clear red. I thought the classics mold was too nice, but alas the already weak bonnet flames have disappeared.
https://i.imgur.com/qycM7Eo.jpg
https://i.imgur.com/sDPM9aP.jpg
Now light our darkest hour.....
