worst case / serving packageing cold cuts

"worst case" is a serving packageing for cold cuts, margarine/ butter with an integrated knife. "worst case" is offered in different variations (cheese/ meat/ fish). You can buy it in the supermarket and take it with you when youare going to your job to school university ec. Then you go to a bakery and buy your favourite roll. So everyone can create his favourite meal. And your not depending on a readymade roll seller in low quality. The packaging is produced of cornflour or potato starch, this saves output energy and CO2. Foodcustomizing of the innovative kind!