Two things make developer events different from general trade shows. The audience is unusually willing to judge the quality of an object, and unusually likely to keep a good one for years. And they already own more branded t-shirts than they want.
Fewer, better, and something they do not already have
The reliable winners are the things that are genuinely useful and slightly better than the version people own: a good power bank, a proper cable set, a decent bottle, high-quality stickers. Stickers are not a joke item at these events — they get used, and they travel further than anything else in the bag.
Apparel still works if the quality is real. Another mid-weight tee does not.
Tier the giveaway
A general item at attendee volume, something better for people who have a real conversation at the booth, and a genuinely good gift for speakers and sponsors. One flat item for everyone is both too expensive at volume and too forgettable for the people who matter.
Plan backwards from the venue, not the show
The date that constrains you is not the first day of the conference. It is the advance warehouse receiving deadline, which typically closes well before load-in, and material delivered there is waiting in your booth space instead of competing for the dock.
Work backwards from that date through freight, inspection, production and artwork approval. What is left is the window the order actually has.
Staff apparel is a sizing exercise
Booth staff, engineers doing demos and speakers often need different things, and they need them sorted before anyone flies. Pack and label by role and size so each group collects its own rather than sorting a mixed pallet at 6am.
If you exhibit repeatedly, stop reordering
A company doing five or six events a year pays five setups and five short-run prices. Produce once at season volume, hold it, and let each show draw what it needs — with replenishment planned against the calendar rather than against a panic.
We handle event merchandise and ship-to-show logistics, and technology programs covers the wider developer-relations picture.