Becky- This place has Peanut Butter Cookie. Not the same, but maybe you can do something with it. Here is a link that might be useful: Peanut Buuter Cookie Scent

The total volume of the jar is not the only factor. The diameter of the jar can also affect your result. Most sites that well wicks have an online guide, to help you choose the right one. They usually go by the diameter of the jar. BTW, if your jars are wide & shallow, you may need to double-wick.

The diffuser oil is the same thing as perfumers oil. You can actually use "Everclear" (the alcohol you drink) in place of diffuser oil. Really, you can use anything that is 95proof or more. Denatured alcohol from the hardware store has the same proof as everclear and perfumers oil but they add the bad smelling stuff to it so you can't drink it. For my diffusers I use everclear and whatever scent I use for candles. They turn out good for me. When I started making diffusers, I couldn't find diffuser oils so I did a little research. That's why I use everclear. It was the cheapest. Cindy

newhomebuilder, I'm taking a look at the new beach club but felt the need to caution you first about buying Scentsy wax on ebay. You have no idea how old it is and unless it's kept in the freezer, it's "intended" use can be as short as 4-5 months depending on how it was stored. It will still have fragrance but be weaker. Which peach scent have you found and I'll try to figure out when was the last time it was offered (but it could be older than that). It might be something that hasn't been for sale for a year or longer! I'd hate for you to be disappointed with your first Scentsy experience. Tell me what you like and I'll try to make some suggestions...of course everyone's nose is different! The last peach fragrance I remember is Posey Peach