While CBMs might be intended for organic:mechanical connections they aren’t all that hard to install (mutations, disfiguring injuries, and excruciating pain not covered under warranty).
An improvised robot wouldn’t be impossible, although Robots for Fun & Profit is pretty rare this would make its title far more accurate than it is now.
I doubt they’d be comparable to a tankbot, but an eyebot would be plausible (Assuming you dismantled a few for parts), and a solar powered battery that follows you around would be pretty convenient.