Check out those little packets of bath salts, etc -- we could put those together as a bonus sample just by order full sizes of a product. Would have to clear with the brand that it was okay. Little test tubes (plastic probably) would be cool too!
Herbivore Botanicals Bath Soak..recently found this brand. love the packaging and natural ingredients
Edelbrand Series packaging design by Espacioblanco (Germany) - http://www.packagingoftheworld.com/2016/07/edelbrand-series.html
Lumojo Honey via Minimalissimo by Alt Group curated by Packaging Diva PD.