7. TV on a Switch
Estimated New Cost: $599*
Estimated DIY Cost: $131–$141*
The level of engineering ability needed to pull this off is far greater than someone buying a new TV for $600. 90s-era TVs were priced between $130 and $140, but light switches like this one cost less than $1. A television from the 1990s made by Sharp was successfully connected to a real light switch. Presumably, the TV turns on when the switch is flipped.

Pinterest and TV on a Switch: @improvememory
In our opinion, that would be more awesome than witnessing someone use a simple remote control to turn on their brand-new TV. A light switch that turns on a fat-back television from the 1990s is a lost art, presumably because it’s science and not art.
