If the coworker is liked by others in the office then get some of the other coworkers to chip in for a nice gift and have a cake. Then sign a card with all your names on it. If there is just you and the coworker then take them out for lunch and give them a nice gift (doesn't have to be overly expensive) and a card.
Examples of farewell party invitations are at this page: http://www.fond-farewell.com/farewell-party-invitations.html
Pleanty of examples of little phrases for a co-workers farewell card on the page http://www.fond-farewell.com/farewell-card-message.html
Hiring that coworker
A sample speech for a colleague could be: We are here today to say farewell to our coworker and friend. Though you are moving on now, we shared many successful projects and many fun times. We hate to see you go, but we wish you the very best. You can add special memories to make the speech longer.
ex-coworker
ex-coworker
My coworker got promoted before I did.
coworker's paycheck
The cast of Out of Order - 2010 includes: Sarah Bassill as Coworker 5 Bryan Breau as Coworker 1 Tim Eident as Coworker 4 Colby Hanik as Coworker 2 Alberto Mendoza as Coworker 3 Valerie Polhaus as Coworker 6 Natalia Proscinski as Woman
Farewells was created in 1958.
Farewell to arms; Farewell my lovely;
If you want to ask out your mom's coworker, you are just sick