snake, I thought this might be how you were doing it. However it looks like a plastic type syringe. I tried to use something similar when I first started pouring and it melted all the way through it. I was scared to experiment with anything else. Maybe I need to try again. Exactly what type of syring is it you are using and do you just pull the plunger out and pour in the plastic and then put the plunger back in or do you suck it out of the cup using the plunger. I would think by pouring it in that it would dribble all over the mold while you were going from one cavity to the next. Those look great and thanks for sharing