Demand for hamburger phones is up 759 percent on eBay since Fox Searchlight released Juno late last year. At a rate of 50 phones a week in January, people are paying as much as $50 to get their own cumbersome 12-ounce device. The plastic phone connects to any regular landline. You could even use it with a VOIP box, we suppose, if you want to get really pointless.