Ok this is the one we had! I think I changed a couple of words around though. And I included another sheet of paper in the envelope seperate from the invitation

More than just kisses
So far we’ve shared
Our home has been made
with love and care.
Most things we need we’ve already got,
and in our home we can’t fit a lot!
A wishing well we thought
would be great.
(But only if you wish to participate).
A gift of money is placed in the well,
then you make a wish….. but do not tell!
Once we’ve replaced the old with the new.
We can look back and say it
was thanks to you!