A calendar, a crest, and a branded gift fail in the same way: the artwork arrives after the event. Start from the date the item must be in hand, then count backward.
Quantity and what gets marked are the next two facts. A medal for a sports day and a desk gift for guests are different objects, even when the logo is the same.
Approve the marking on a sample before the full run. Changing a name after production is how a souvenir becomes a storeroom problem.