Does anyone make a small headphone A/B box?

["Jeremiah Moore" jeremiahmoore99]

Hi all -

Is anyone on the list aware of a manufacturer who makes a small A/B
switching box for headphones?  (I checked out Core and Sonic Studios
to no avail.)  I'm wanting to monitor several headphone outputs in the
field, and be able to switch between them without hassle.  I suspect
this may be a common enough problem, so I thought maybe somebody out
there offers a solution... but I have been unable to find.

My ideal criteria are:
 - small, to fit alongside a recorder
 - 1/8" or 1/4" connectors OK

This could be accomplished with a small project box, a little switch,
and some connectors.  (yes I could do it myself... but my time is
precious at the moment)

apologies for cross-post.

thanks,
jeremiah moore