Costumes are bought from a concept sketch and judged on a hot afternoon. These four decisions are what decide the second part.
Own the character
A costume of a licensed character cannot be used commercially, cannot be photographed for your channels and cannot appear in your marketing. Any supplier who offers to make one is handing you the risk.
Commission an original instead. A good designer will give you something that does the same job, reads better at distance, and belongs to you outright — which also means you can put it on merchandise.
Heat is the real hazard
It is much hotter inside a mascot head than in the room, and that gap grows with sunshine, crowds and effort. This is the thing that actually hurts people in this category.
Ask about the airflow path, whether there is a powered fan, and what maximum wear time the maker states. Then plan a rota and an escort. A mascot on its own cannot see well enough to look after itself.
The sightline is a design decision
Designers instinctively put the vision aperture at the character’s eye level. That is often far too high for the person inside, who then cannot see the ground.
Insist on a sightline positioned for the performer and hidden in the design. It is the difference between a mascot that works a crowd and one that trips over a child.
Certification for stage work
Venues require costume and soft goods to meet a flame-retardancy standard and will ask for the certificate. ‘Fire retardant’ with no standard named is not usable.
Specify inherently flame-retardant fabric rather than a treated coating: a coating degrades with laundering, so a costume that complied on the first night may not comply on the last.
What to send when you ask for a quote
A character idea (or nothing at all), how many, the height range of your performers, how long an appearance lasts and where it will be worn. That is enough for a real quote and a concept the same day.
A costume reads at thirty feet. Most concepts need simplifying and exaggerating rather than detailing, and we redraw free.