Klevgränd has released Santa Jussi, a Christmas:ified version of Klevgränd's popular vocal synthesizer Jussi. The user interface offers no parameters, but this special version of the plugin has been tinkered with for both playability and how-how-how-ability.
To get a copy of Santa Jussi, log in at klevgrand.se (it's free to register as a new user). When logged in, the download is available as an "exclusive member content" in the user area.
Together with the Santa Jussi release, Klevgränd has also announced its Christmas sale with up to 50% off on selected products. More info at klevgrand.se
Santa Jussi is available for macOS and Windows as a VST, AU and AAX plugin and requires a 64-bit host.