No probs Noodle.
The "syringe" was bought at a Hobby Lobby for 10 bucks. It's a Sculpey product, so I'm sure you could find it elsewhere. Here's a pic of what it looks like:
It comes with attachments that'll make circular, triangular, square, rectangular, and even 3-leaf clover beads! Yay! It will certainly make thinner strands. The only drawback to using it with Fixit is it's difficult to clean. Make sure you dip the syringe in water before you put the Fixit in.