Pursuant to this Twitter thread:

Xanadu-Shave

In Xanadu
A dome decree
Where river Alph
Runs down to sea
Burma-Shave 

This is Xan a du

I have decreed
the pleasure-dome
that was in
Xanadu

where Alph
the sacred river probably
ran
through caverns down to a sunless sea.

Forgive me
they were measureless to man
and the dome
so stately.

Plumb Thief

From box-of-ice did I your friend
A hearty batch of plums consume
Of which, forgive me, you to eat -
Delicious breakfast, cold and sweet -
Were saving, I presume.

(Inspired by These Are Just To Say)