A public list where the highest bid holds the top spot until someone pays more.

Why it works: The people who get pushed down post about it. The losers do the marketing, and the ledger makes every loss visible.

Ad space on a real toilet, projected on, sold until the counter says one million.

Why it works: Every sponsor becomes a video, and "King of the Throne" makes the highest payer compete. The first six sponsors paid 2,417 dollars on average, the last six 8,833.

The 2005 pixel page again, with a price that rises as the grid fills.

Why it works: A $42 ad on another project in this list brought the viral day. A rising price rewards early buyers and gives every step a post.

A share of a digital billboard on a real Lamborghini, for the life of the car. One sponsor so far.

Why it works: One sponsor, $25,000, and it may be the creator’s own company. The visible counter shows $0 until JavaScript runs; the real value sits in an accessibility attribute.

One dollar makes a red button one pixel wider, forever. It does nothing.

Why it works: No viral moment and no press. A permanent name on a wall for one dollar sells every day anyway.

Ten sponsor slots on a directory that had 80,000 views before it had a sponsor page.

Why it works: Traffic first, then scarcity on ten slots. The price went from $299 to $2,500 in one month without a single ad for the ads.

Buy a country on a world map. Anyone can take it for 1.5 times your bid.

Why it works: Forced escalation: every takeover is 50 percent dearer than the last, and being thrown out of a country is a post.

Ten sticker spots on a MacBook lid, auctioned before the laptop was bought.

Why it works: Sold the lid before owning the laptop. Press was the multiplier, not the launch post.

Free listings allowed, paid from $1. 115 entries, $178.

Why it works: The free option and the $1 floor destroy every price anchor: 115 entries, $178.

Pay and get nothing. Optionally, your name on a leaderboard of twenty.

Why it works: The product is the joke and the leaderboard is the product. Two buyers at $1,000 each are 40 percent of the total.

Logo slots on a Tesla Model Y with live GPS, for the life of the car. Three of 19 sold.

Why it works: The template for Brand My Mac, with fixed prices instead of an auction. Fixed prices sold 3 of 19 slots; the auction sold 10 of 10 in two days.

One link. Pay one dollar more than the last owner and it is yours until someone does the same.

Why it works: One slot, one owner, and a public list of everyone who lost it. The buyer gets clicks at a price that competes with paid ads.

Startups stake countries on a spinning globe. Product Hunt top five, $965.

Why it works: Product Hunt top five and a creator with 30 followers added up to $965.

Sixty-two ad spots on a Mercedes-AMG, for a year of driving through four Nordic capitals.

Why it works: The scarcity is physical and visible: a car has a fixed number of panels, and the site shows which ones are already taken.

The auction for iOS and macOS apps. Top bid $172, then nothing moved.

Why it works: Sold in the first two days, then stopped.

Pay from $39, rank by what you paid, and get a real backlink from a domain rating of 71.

Why it works: The only board whose top spot holds around $200 instead of $25, because the backlink has a measurable SEO value.

The paid ranking of French startups. Your rank is what you paid, from 30 cents.

Why it works: Same product, same week, same rule: the French page made 2,687 € and the English twin $21.60. The scene is the product.

Buy a plot in a 3D city and an AI draws your building. Downtown costs $999.

Why it works: A city instead of a list, and a $1,000,000 tier as the joke.

The same auction for iOS apps. 34,000 views, $2,000.

Why it works: Second-weakest visitor-to-revenue ratio after xme.lol.

Rank bids for vibe-coded apps from $1. "Every app below paid real money for its rank."

Why it works: A niche (vibe-coded apps) on the same mechanic.