Alright, here is what i was wondering..

If Player1 (Red) makes a Terran Marine; can I give it to Player8 (Yellow) but keep the Terran Marine keep Player1's color (Red)?

I can't really think of a way to do it. I know if you give a unit to Neutral, it stays color, but you can't give Neutral units to other players(can you? idk hah)

Thanks for any help!

There is no way, except by using Rescuable units, but an entire player must be devoted to rescuable units in order to have them, so it's not really worth it.

That's what i was afraid of...

thank you <3

You could give it to player 9, 10, 11 or 12 (Neutral) and it will retain its color. Those players respond to trigger conditions and actions (you can give them, order them, remove them, etc.). The down side is that they have weird/no AI.