What would you do if you had to turn $200 into $1000 in two weeks?

[hq-selleer]

Here's a fun little theoretical. You have $200 to your name and need to come up with $1,000 for XYZ reason within 2 weeks. Your life depends on it. You're not allowed to gamble, sell drugs, or anything along those lines. You have no transportation and are forced to 5X your money online, without help from family/friends. What would you do?
I would probably end up searching eBay, Mercari, and other marketplace/auction sites for undervalued items, and resell them.