Warrants

When the detectives come to your house looking for the missing wi-fi bandwidth, they bring a…oh, wait. That's a different flavor.

A warrant kind of like a call option, in that you get to buy a stock at X price whenever you want (within a few years typically) no matter what the price of the stock is at the time you use it. Could be pretty awesome if you used a warrant that let you buy a stock at $2 when it's suddenly shot up to $10.

Free profit, right?

That's why they're typically given out by publicly traded companies that need a new bond issue (otherwise known as a sudden pile of cash for the company) to go as well as possible. The industry calls them "sweeteners," in that they sweeten the deal. Of course, that means that the stock better go up or the warrants are just pretty pieces of paper.