Crayons look like the simplest promotional product there is. They are handed to toddlers, which makes them one of the few where the paperwork matters more than the print.
Ask about the market, not the standard
The required children’s art-material standard differs by territory.
A supplier who quotes a blanket claim for every market has not checked.
Ask for laydown
How much pigment transfers per stroke is a specification, not a feeling.
Pale, draggy crayons are a formulation choice made for cost.
Match the barrel to the hand
Standard diameter for school age; jumbo, egg or palm for toddlers.
A snapped tip in a toddler room is a small part, not an inconvenience.
Specify the packing, not the product
Pack size, sleeve, carton count and per-site delivery are what the quote is really about.
That is especially true for menu packs, which are consumables.
Then design the sleeve
It sits on a table in front of a family for an entire meal. Spend there.