Is there any way a 13 year old can make 100 dollars in 10 days?

Theres this item on ebay that I REALLY want to buy, it's extremely rare, but its around 50$ right now, and the shipping is 12 dollars(from Australia). I'm sure my parents won't just buy me that, mostly because I bought something else recently but since the package was so big they made us pay 40 bucks to the guy that was delivering it, so it came out as 100$. My parents WOULD buy me it if I could get the money myself, but I don't know. Theres 10 more days until it's unlisted, wat do yahoo answers?