I'm building up a psk and was looking for a way to store 100% deet. Don't need and have no room for a 4oz bottle, and where I usually go 100% deet is what you need to help keep the mozzies at bay. I really don't like the wipes and haven't been able to find ones that are 100%.
I was thinking of using straws and setting them up for single use (2-3 inches long, which would contain a good amount of deet). But I don't have anything at home that I can use to safely 'melt' the ends of the straw to make a proper seal.
I like blast's idea about the centrifuge tubes... but 500 to a case? All i need is one... well, probably 10 or so.
You might want to try these:
Sample Vials Product Description
;;
* ;;Cylindrical, polyproplylene vials with friction-fit, captive closure open and close with a flick of your thumb ;;
* Suitable for many applications ;;
* 12 per bag
They seem to fit your requirements.