8. Bella's Engagement Ring (Twilight)
Here's where we stop getting silly and we start getting scary. We all know how crazy the Twilight phenomenon makes hormonal young ladies, and there's a market ready to exploit the Hell out of that, even extending to allowing Bella's biggest fans to have their very own engagement ring that's just like hers! Genuine jewel versions - rather than a crappy plastic knock-off - costs close to $2,000, so you'll need to be a serious Twi-hard to go for it, though I imagine there's enough demand out there to make this a frighteningly good seller. The main hurdle is finding a guy who won't look down on you and run a mile when you ask him to buy this for you. If he sticks around, then you can be sure of one thing; the guy sure does love you a lot...