Brassinematic of Fanan Musical Solutions is a very interesting plugin with 4 brass instruments you can edit and mix together. It has some interesting hidden features.

MFreeFXBundle of Melda Production is a set of 37 free effect plugins with some very useful and impressive effects that normally are not available for free.

ColaB3 is a brand new free tonewheel organ emulation with rotary speaker simulation. Many producers are looking for this sound in a plugin.