Doepfer

Exotic?

Hmmm...
How about 

*a switch selectable 1 - 8 step Analog Shift Register?

*a variable bandwidth VC BPF, with VC Q on each cutoff, and VC of the   
    bandwidth such that it could go from an All-pass filter to a Notch
to a No-pass?

*a compander module?

are these exotic enough for you?

sfrules