Some modular things I've bought in a recent couple of months:
Doepfer A-118 Noise + random volt generator. White, blue & red noise. Choose the best, or choose them all! Plus a random voltage output. HNW insanity.
Doepfer A-124 VCF-5 Wasp Filter using the similar circuit as old 70's Wasp synthesizer. Truly excellent filter, propably the best I've used so far.
Doepfer A-136 DIS Distortion/Waveshaper. Shapes your sound wave into complete mess sounding really fucked up.
Doepfer A-189-1 VBM Bit Modifier for bit crushing etc. I got this just yesterday so cannot say much more except feeding in a colored noise can sound truly harsh.
SOME ROUGH IMPRO TESTFILES:
Epileptic fit 1 (made by WSG, rough DIY spring reverb & modulars + amp efx)
Epileptic fit 2 (noise generator -> rough DIY plate reverb -> modular + amp efx)