Ok,going to play Devil's Advocate here......
The initial outlay for enough boxes to cover a stall might possibly deter anyone buying even one in the first place. Afterall,it's all about display and uniformity,and who wants one or two looking out of place?
What's the average amount of polystyrene boxes used by a stall holder and how many break on an average day/week?
Do the boxes come with felt-lined lids and are they stackable safely,come in different sizes,have drainage holes,easily washable and transportable,varnished? How much does the lining weigh or rather,what's the cost of posting it back to you to be fixed and what's the turn around time on this? Doesn't using plastic covered felt negate the eco-argument? Is it even hygenic?
........ ok,playing Devil's Advocate over.Please excuse all the questions and me,if I've misinterpreted the remit. I do think it's a good idea,I like the feel and look of wooden boxes,I like the idea of them being personalised,and as a general over-all look of a stall,would give it a more eco-friendly feeling to it,and it's all about first impressions. But,do you look at the mantle piece when poking the fire? Good luck,I wish you every success...... Ree