Here are some M4L devices I made. Free download, do what you want with them.
(Download links @ end of page.)
If you find bugs, please tell me so I’ll update them.
v.MICROSYNTH
v.MULTIGRANULAR
QuadGranulation using Grainflow.
v.MICROADDITIVE
Additive synthesizer (up to 100 partials)

v.NATURE
Tool that generates some nature sounds with synthesis and algorithms.

v.TEXTUREGENERATOR
Granulator/Texture generator

v.SYNTH
Simple subtractive synth

Download links:
(If you’re unable to download: right-click, “open in a new tab”)
(v.1.1 -> Added save and recall presets.)