What brand?
Luc's shave stick review here may give you a clue.
I've found soap making supply stores also have these push up things. I almost ordered 6 at $1.50 but didn't because shipping was almost the same as product.
Brute container is $5 local, I suppose it will last a long time but didn't pull the plug on it either. I did get a sampler for .99 to see if making shave sticks is for me. Worked ok... 10 sec in the micro is too much 7 too little. Messy.
I still think the vintage tubes are too cool. Really digging the double cap. Thanks for the link to that. I wish my search skills were up to par.
Grampa's straight, Victorian scupper, and a vintage shave stick... how cool would that be???? Hmmm maybe I need a vintage, restored brush too.
(sigh) does it ever end? I'm going to have to build that walk in closet for the "collection"
Be careful when melting soaps in the microwave. Triple milled and Tallow soaps don't melt, they burn.
Good to know.
If you are just after something to use many vendors sell empty twist up containers that work very well for storing a shave stick
http://www.westcoastshaving.com/Twist-up-Shaving-Stick-Containers-2-oz_p_649.html
I looked at those and these http://www.brambleberry.com/Push-Tubes-Clear-P4203.aspx. What's wrong with the tubes they come in?