Changa!  

Thats the most plain and simple guaranteed safe method IMO just so you dont have a baggy of white powder on you. Its kind of hard to not get a bit of stick no matter what container though, especially if you live in a place that is constantly above melting point for freebase. Which good ol texas is just perfect for wrecking a batch if left out to long. You could use a small plastic baggy, like a gram bag or something you could rip open. Or if youre careful i just fold up a pre measured dose in some paper, ive noticed mine comes off of paper very easily. Also ive used no stick dab jars, but i noticed a bit of spotty change in the color of the jar after a while so silicone may not be the most friendly.