Playing Sean Spicer wasn’t Melissa McCarthy’s idea – that honor goes to Kent Sublette, McCarthy’s old Groundlings pal and now Saturday Night Live writer. But on The Ellen DeGeneres Show today (see clip below) McCarthy said her initial hesitation vanished once the ear prosthetics were in place. “Can I have eye bags?” she asked the make-up department? McCarthy told Ellen DeGeneres today about how her now-famous SNL take on the White House press secretary came about with…