Pick a concept, print one, see how the crew reacts. No minimum, no risk, single-piece ordering.
Start FreeYes. None of these specific lines are trademarked. Adapt the wording to your voice and your company.
The tonnage joke ("I work in tons, not feelings") and the "trust me, certified HVAC tech" line consistently rank highest in trade shop sales.
Both. Crew loves them, but spouses and gift buyers drive the higher volume. A public-facing shop with funny shirts moves more than a crew-only one.
Yes. Joke on front, logo on back is the most-used combination, no extra setup fee.