@startup_snack: A guy in Switzerland turned a water tank into a daily cash machine inside his sneaker store. You drop a coin into a cup sitting at the bottom of the tank, and if it lands inside, you win free sneakers. Sounds easy — but it’s nearly impossible, which is exactly why people keep trying again and again. And every attempt is another tip in the jar, adding up to over €100 a day. If you own a restaurant, café, or any store with foot traffic, you could set this up this weekend. Nobody in your city is doing this yet — and that’s the whole opportunity. Follow me, I post ideas like this every week. (This genius idea belongs to topdeckshops — go show them some love.)