Everyone knows that ice cream is the perfect cure for depression and sadness. Now there's a voice-activated, self-serve frozen custard machine serving up an antidote for the blues. The portion sizes are based on the level of depression the machine detects in a voice-stress analysis, so the sadder you are the more ice cream you get! Demitrios Kargotis unveiled his Mr Whippy machine at the Ars Technica festival in Linz.

[WeMakeMoneyNotArt via BoingBoing]