Farewell used in a sentence

Farewell in a sentence as a noun

Our goal was to bid a lighthearted farewell to our blue logo and raise money for patients.

I even bought a Nokia N9 last year considering it my farewell to a once great company destined to be a part of Microsoft.

If someone on Mars manages to, say, contaminate the colony's water supply, all we can do is record farewell messages for loved ones and deal with the bad publicity for decades.