It turns out that in the container industry, a "vial" is usually has a volume of 1 fluid ounce (30 mL) or less -- often more like 1 fluid dram (1/8 of a fluid ounce). What I'm looking for has a volume of about 4 oz (115 mL) which the container industry call a "jar". Today I found some reasonably priced suppliers for just about every kind of vial, jar, and what-not you can imagine:
SKS Bottle & Packaging, Inc.
Yankee Containers
In particular I found the 4 oz size of "clear plastic straight-sided jars" with lids for $0.44 each in quantities of 24, $0.39 each in quantities of 280, and $0.33 each in quantities of 1100.
I think this makes me a jar head.
