Which orange-fleshed melon is named after a former papal estate near Rome?

Which type of lamp is powered up by a ballast? Which large snake may be reticulated? Which word names both a type of lizard and a computer screen? In health insurance, what does HMO stand for? Which word names both a type of music and just plain people? Which word names both a type of mustache and a bicycle's steering bar? A type of investment swindle is named for which con man who ran it in the 1920s? Which word names both a breed of toy dog and a fictional falcon?