I just did a search and Colibri has their flask on sale.

www.colibrimall.com/Colibri-Flasks/cat/Flasks

The Cosmopolitan (4.5 oz) Flask is on sale for $20.18.

Now please note that I pass this information along for those of you who have to carry cough medicine with you and need a nice unbreakable container. Carrying of ferment spirits in this container would not be in keeping with the high standard of this forum.