Strangely, given how well they work together, I can't find any videos of the Werkstatt and the Olegtron. Working together The video below however gives a good idea of the type of modulation produced although in this case it's going into the VCF in on a small Eurorack system.http://youtu.be/gwWOLIMKowQ
This uses only one channel of modulation and is connected by the mini jack out rather than the direct patching that can be used with the Werkstatt.
The octave divider works like a clock divider on a modular making simple synced modulations easy. Once you start adding components however it can get a bit crazy.
The biggest challenge I have just now is getting some control over the level of modulation but it's a lot of fun if you like strange noises...