Ships...
Ratchet and Op
Megop
Starmus (Starshift and Optimus)
Ratchet and Wheeljack
Ratchet and Starshift
Starshift and your oc
Knockout and Breakdown
Knockout and Starscream
Megatron and Starscream.
Etc
(I wont do bumblebee he's to cute for this kinda stuff and I won't hurt him this way.)