We have done cotton aprons for some time. They're hard to find--especially the nice big aprons that we like to use. We ended up ordering them from a good old fashioned dry goods store from South Carolina called Bluesteins as I recall. They were $3 - $4 each. They have no web presence. Here's the contact info:
Bluestein Wholesale Dry Goods 933 Gervais Street, Columbia, SC 29201 (803) 779-2244
A recent search revealed another source--in batches of 60:
http://www.instawares.com/economy-bib-apron-100.bvt-610bac.0.7.htmHere are some cotton chef's coats that aren't too outrageous:
http://www.everythingfortherestaurant.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=VU&Category_Code=CGoing to try dyeing up some aprons soon as we are selling bread at a public market, so it won't hurt to have some tie-dye to sell while we are there! Aprons are a nice flat surface and are really easy and fun to dye.
Have fun!
Steve