[openbox] How Show Icons of Minimized Windows?

[Richard]

I just switched to the Openbox winidows manager. After adding
netwmpager, obconf and menumaker, Openbox does everything I want with
one exception:

How do I get something like the Enlightenment Icon Box to show icons of
minimized windows? I don't really want to install a task bar just to
show minimized windows  unless there is no other option.

In Openbox what are the best ways to show minimized windows?  (I know
about pressing <alt>-<tab>.)