Yes. It's called the Mini Vivi Nova and it holds 2.5 ml. of juice. It takes the same replaceable heads as the normal-sized Viva Nova. Also, some juices are plastic unfriendly. You can get anodized aluminum replacement tubes for both the normal and mini sizes of Vivi Novas to use with those.
I'm currently very attached to my setup, but when I change anything I will be sure to try out a Mini Nova. Thanks so much everyone for your input!