And if you have time and patience there's always someone posting a bunch of cheap glassware on eBay.

If you really like the syringe idea I use a bunch of pipettes with rubber fill valves. Watch long enough and you can get them cheap.

I did buy the pipettes separate from the fill bulbs. I think the bulbs were from a Far East supplier, but the pipettes were from a medical lab closure. I got about 20 for a couple of bucks.