Here's an unparalleled gluttony opportunity in the UK:
The £10 Breakfast!!! (via Making Light)
Mario's Cafe in Westhoughton do a big breakfast for £10! Eat it all in 20 mins without a drink to wash it down with and you get it free!
It's 10 eggs, 10 bacon, 10 sausage, 10 toast, 5 black puddings, tomatoes, beans and mushrooms.