President Obama doled out some more gifts in London on Wednesday, including signed, "personalized" copies of his new children's book for Prime Minister David Cameron's kids. He also gave them toy scooters and a jigsaw puzzle of Bo (and a stuffed Bo), according to the White House. Read the official gift announcement: "The President and Mrs. Obama gave the Prime Minister a custom-made pair of White House Magnolia wood and sterling silver cufflinks engraved on the reverse with the President's signature, as well as a first edition of President John F. Kennedy's book, Profiles in Courage. "The President and Mrs....