I needed a holder for the BitZero V2. I ended up multiple times missing to attach the magnet to the spindle, so I created it with a magnet/cable holder: that way I never missed to make the connection :-).
The design includes holders for the probing bits and hooks for the cables:
Files are on Thingiverse: https://www.thingiverse.com/thing:4918145
That method of holding the magnet would have saved me some time. +1
Well thought out! Might have to print one for my SO4. 
Worked up a similar design which can be milled:
… and a spare magnet button cover
I’m confused about that one: did you receive your BitZero with such a magnet button cover? I don’t think I have that one received?
Depending on when/how your BitSetter (EDIT: not BitZero) was purchased it might:
If you need another 11mm diameter magnet let us know at support@carbide3d.com and we’ll work out how to handle this.
Depending on when/how your BitZero was purchased it might:
- have a steel button
- have a steel button w/ magnet and magnetic cover
- have a steel button w/ magnet and magnetic cover and spare
Methinks your Zero needs Setter-ing ? 
This is with what my BitZero V2 came with (purchased about a month ago):
To me this is a magnet with a steel button. No cover and no spare magnet.
Maybe this was yet another configuration?
As @Gerry noted, I had messed up my nomenclature, it’s corrected now.
The BitZero came in two versions, v1 has a small alligator clip, v2, the magnet which you show.
ah, this clarifies it, thanks!
