The Tikker is a watch that counts down the years months days hours and minutes to your death. This could be useful if you want to make sure you say the right things in your final moments. Saying your last goodbye to family and friends and also, making sure you have the right amount of time. Along with telling you when you die it tells you the regular time. This is helpful just as any watch would be. I think this is an interesting new piece of technology and could gain a lot  popularity.