I think you will do fine, and like mentioned, scents will last a good while. My only advice is to not make a lot of dipped critters, maybe one or two to have to show, but I do mine as they are ordered. By only having a couple, you save yourself having to guess what people would want them scented in, and trust me, when they see the ones you have made, they will be ordering them from you especially with the holidays coming soon. Good luck and just relax and have a good time, you sound like you have going to have your first home show with people you know which can help a great deal when trying to get started