Recommend 'unusual' Rhythmic/Drone/Feedback synths

[DoS]

Benjolin all the way

Rob Hordijk's BENJOLIN Explained (w/ sound demo) #TTNM

@DonovanDwyer

Grendel Drone Commander (ammo box or pedal)

This too, though I have the outstandingly great Eurorack version.

Also, see here for more discussion:

Drone synths

I’m looking for a small synth to use mostly for drones. I love the sounds of the Erica fusion system but my budget doesn’t stretch that far at the minute. More like 500 euros. Any suggestions?