acid.milch&honig has released stylobox v1.0 and transistor drums v2.0c. Both plug-ins are free / donationware and are available for Windows as VST instrument plug-ins.
transistor drums is a drum machine that uses different kinds of sound generating: the kick drum works analogue-style, the snare drum works hybrid analogue-style/sampling, the clap is granular sampled and the rest of the drums are built with samples.
Velocity affects not only volume – it also has an influence on the EQ in the background, analog parameters and also (minimally) to the envelope. Also built in is a microtuning random generator which generates for every drum beat a tiny difference mainly on pitch but also on other parameters to generate a more sensitive pseudo-realistic sound. A patch random button is included to help in creative crisis.
stylobox is like a virtual analog or physical modelling emulation of a well known toy instrument classic. It works without any samples, so octaves are possible. The only parameter is the vibrato on/off switch, which can be used with the mod-wheel.