Get yourself a celebrity as a personal toy.

With the voodoonator all you need is a sample to get absolute control over someone, you can command them, strip them, change them...

There is a lot of hard-core fans (and clearly weird ones) that have a market for things belonging to celebrities and sometimes even hairs or nails. It will cost you a lot of money to buy a sample from someone famous but it isn't a problem. You can just get them to give you some money once you reel them in.

You already can use your sister's and Chad's savings as seed money. You already can see yourself messing with a singer or actress on a live event or using your first victim to collect new samples and create a harem of famous women totally devoted to you.

You launch eBay and a few specialized websites to look for something interesting. After a few hours of search (with a few pause to check on your sister that had been fucking Chad every way she could think of the whole time.) you finally find the perfect item.

It's rather pricey but there is an used hairbrush with a few hairs on it on sale. The star it belongs to is on that you had been a big fan of for years.