Do a search on google and you can buy a bag of a thousand for cheap. Tons of places sell them. Get the biggest ones you can. I think there "OO"s size.
Go to the grocery store and get some cranberry extract capsules. Leave them in your car on a hot day. There is gelatin mixed with the cranberry extract. It will solidify in the heat and then you can open the capsules and the stuff will fall out like pellets leaving virtually no residue. Only cost about $4.00 for 100 caps.
Basically, it's just a lot simpler than ordering them and having to wait, blah blah blah. Plus it will save you a few bucks, sort of like 1-800-COLLECT!
Hmm.. I'd be careful with plastic bottles. GBL does tend to dissolve 'em. It won't break or anything, but do you really want to be drinking dissolved plastic?
Do you really want to drink something that dissolves plastic and is used as an industrial cleaner?