These are the examples of cosmetic containers you should use for transferring your samples . You could get them at your nearby market place ( they are more cheaper ) or alternatively you can get 2 for $2 at diaso . The first picture is a set which i got at a nearby market place for $1.80 . It comes with a small zip lock bag ,  a scraper thingy (seen in the 7th and 8th pictures of this post )and a dropper thingy .

The 2nd picture is 7 containers for $3.90 . They are all joined together in the sense that their container’s cover is the bottom of another container . Also gotten from a nearby market place .

Read the uses of the containers Here

Read the labeling process of the containers here