Christine, by TTG.
It is more outrageous than Dwarfcraft's
The Great Destroyer, IMO, but then again, there's a vero for a ...
...Double Great Destroyer on the loose.
Ugly Face, by Tim Escobedo — Vero & Perf layouts online, PCBs too, I believe. With or without LFO. ("With" is even crazier)
Not DIY, but anything by Metasonix — the Agonizer is my favourite out of this bunch.
You've gotta get the right chip for Christine and The Great Destroyer, ie the CD4049
BUFFERED. NOT the 4049UBE (unbuffered). Either circuit will still work with the UBE, but neither get freq'n'crazy with UBE.
A lot of places claim to have the CD4049, but then ship you a CD4049UBE. How do I know? Let's just say I've got enough CD4049UBE chips to build all the 4049UBE circuits I've ever come across (I started a separate build doc for the list), and I still don't have a CD4049
BUFFERED.
If you can find this chip for TGD or Christine,
MC14049BCPG, GET SOME! They're purportedly even harder to find than the CD4049 buffered.
Of course, you can get pretty broken sounding with the good ol' Usine/Manufacturing Complex/Industrial Facility/Assembly Plant/Workshop/Atelier ... whatchamacallit, the one we're not allowed to say, the manufactory of hissing buzzing fizzing fluffy belly lint... comes with 5 knobs, sometimes 7...
I look forward to what other suggestions will be made, and to what you find most suitable!