If I was the only one with Morphing Power? First start shopping online for DNA of famous and powerful people. Be it a strand of hair from Bill Gates, blood from Donald Trump, whatever.
After morphing those people, start transferring stuff that are valuable but to them, basically worthless, and proceed to profit. If you can't get the world's richest, that's fine, just go find the billionaires or well-paid local actors. A hundred grand here, 50 grand there. It's small enough they wouldn't even feel it, but it's more than enough to live well.