Black Lotus is the most valuable Magic card in standard printing, valued at well over $500. A MiseTings thread started about Wizards of the Coast printing a "Promo" Black Lotus, with the new borders, and foil. To take it to the next level, I made the following DCI-promo-foil-alternate art-Asian-signed-miscut Black Lotus:

Later, I added on Harry Potter backs (some misprinted Magic cards with HP backs had recently sold for an outrageous sums), and I made the following fake auction for another thread:

As an easter egg, if you followed the eBay auction number, this auction would come up: