lip balm

[stasiia.livejournal.com]

I have some questions about making lip balm.. first of all
you are supposed to use a pyrex measuring cup.. is that a type of plastic? can you use glass?
I'm buying about 10 lip balm tubes and little circular ones, how much beeswax is needed to fill 20 containers? how many oz.
Do pipettes have numbers on them so it's easy to measure?
and does anyone have some tips for me.

What are some sites to buy things for lip balm making, i found a bunch already, but i thought i'd ask again anyway before I buy the stuff.
And does anyone prefer candelilla wax vs beeswax?
Or anyone have really good recipies that they're tried and like.
thanks ; )