I love my stopper syringe thingie... Lemme google...
...
Couldn't find the one I was looking for but did find this:
Amazon.com: Oral Medication Syringe 10 ml (2 tsp) with cap (Monoject): Kitchen & Dining
I can tell you I got it at either Albertson's, Wal-greens, CVS or Target. LOL
One of those
Hope that helps!