Real Tech News's - Gadget of the Week: "We’ve all been there. Miles from home, trapped in an endless cell phone conversation with no way out. Luckily there’s a handy little gadget called the “Get Off the Phone Excuse Machine” that with the press of a button will send an array of interruptions to your call. Six sample sounds include: doorbell chime, crying baby, static interference, dinner call, siren, and crashing car. Price: About $18."
This is a new use for a really old technology as far as gadgets go, but its a pretty funny device. It includes some useful sounds (like a doorbell, baby crying, and some others) and useless sounds (like: 'Can’t let the chop suey go cold can you?'). I don't know how real the device sounds on the other end of the phone, but I can imagine it might work.