Stage three of the path, the gift itself, holds this page. Before it comes the choice between type and a photograph. After it comes framed art and canvas, for the pieces big enough that the wall has to be picked first.
Two shelves, and they need different objects
There's the shelf a thing is kept on and the shelf a thing is used from, and they rarely take the same object. A mug lives in the second: it earns its keep by being picked up every morning, and it survives because it is useful, not because it is precious. A print lives in the first: nobody uses it, so the only reason it stays is that somebody decided it should.
Deciding which one you are buying is more useful than deciding how much to spend. A used object needs to be good at its job before it is personal. A kept object needs to say something specific enough to be worth the wall space, because a vague one gets taken down during the next decorating.
Specific beats fond
What keeps a retirement gift on a wall is that it holds information nobody else in the room could supply. "Happy retirement" is a sentiment, and sentiments date. A name set beside the job, the span of years and the employer is a record, and records do not.
That is all the name print sets. Four typed lines, no date box, nowhere to write a paragraph. It sounds like a limitation and is mostly why the thing stays legible from across a room.
The Personalised Name Print From £15.99 Poster
Four typed lines: their name, their profession, their years of service and where they worked, printed to order.
What the kept version costs, and the used one
An A4 or A3 print, a framed A3 ready to hang, a mug or a water bottle, each priced on the name print page, with free UK delivery on every one of them, or the file, not the object for less.
Where a photograph would carry the career better than any wording, the portrait is the other route. That starts at an A4 poster and goes up to canvas.
The test worth applying before you order

Ask where the object goes on the day after the leaving do. If the answer is a specific place in a specific room, it is a keepsake and the size and finish now matter. If the answer is "somewhere", the money is better spent on something they will use, and the mug's a better gift than a print nobody chose a wall for.
Where the number of years is the whole point, when the career is the milestone takes that case further. Still weighing the budget? That is the page on what people actually spend.

