The Sandwich Knife
This special dual-blade serrated knife solves a truly first world problem – slicing two perfectly even, thick pieces of bread to just the right depth to keep guts of your sandwich from falling out. To sweeten the deal, its price is now just ~$20.
Crowdfunded projects pose a degree of risk for buyers, so be sure to do your research and fully read the seller's detailed description and production plans before plunking down your hard-earned money.