A medal commemorating the meeting between U.S. President Donald Trump and DPRK leader Kim Jong Un is being sold online. /VCG Photo

U.S. President Donald Trump and DPRK leader Kim Jong Un kicked off their second summit on Wednesday. /VCG Photo

The two men met at the Sofitel Metropole Hotel in the Vietnamese capital for 20 minutes for one-on-one talks before a small dinner with only close aides. /VCG Photo

They will hold another day of talks at their second summit in eight months on Thursday. /VCG Photo