The drawer holds only a toothbrush, toothpaste, a comb, and dental floss.
A bathroom drawer with children's toiletries and floss.
A drawer that contains floss, toothpaste, toothbrush, and a comb. 
The drawer has a comb, a toothbrush, and dental floss.
A drawer with a toothbrush, toothpaste, a comb and dental floss.