How stupid does a business idea have to be to be genius?

Ideas mashup!

Steve & Emlyn look at ideas from across the spectrum:

Subtitles for sports chants? Should this be a thing?? Quick jobs for day laborers: Can this proven model be applied at the local scale? The backpack hoodie! What about a backpack poncho? Waze for supermarkets! The app that shows you where every item in the store is! Buying/Selling unused vacation time? Uhh... Blimp-based solar panels. That's the idea. An aircraft carrier for launching people into the water. Umbrella 2.0. Gag gift ideas form online convos. User-generated documentation: Who knows better than users what users need? Anti-SPAM browser extension? With a twist? "De-verb" headphones for noisy venues. (Maybe patch them into the board?) A better way to meet neighbors: Steal their cat! Humans as...pets? Profile pics aggregator. Trace your online identity through the years... Pro-Quality in-ear microphones? Is this even possible? Shorts term rentals of music gear. Need a guitar pedal? Wanna play with a new synth? A baby bidet! Why isn't this a thing?! Soundproof privacy wall for cars. A must-have for long road trips!