Marcos, Drinking straws work well for this also.Just put the end of
the straw on the end of your injector and shoot.Low pressure.Slice
with a scalpel and remove the sprue.If you can find paper straws they
work great as you just peel the paper off.I bought a cake decorator
kit years ago that had different tips on a metal syringe.There were
stars and flower shapes among others.That was alot of fun.I noticed
that people are selling the same set up for PMC clay.
Regards J Morley Coyote Ridge Studio