You can use any color combo or container but I love how adorable these cupcake cups look and super bonus, they are totally affordable. Little baggies, pretzel bags, gumball tubes, and small boxes would also be super cute.
Download your Free Valentine Gift Tag and then print it out on white cardstock. I buy 110lb white cardstock from the office supply store. It's way more economical than using craft store white paper. Use your favorite paper punch or simply cut out the tags with a sharp pair of scissors. I ran a small amount of double sided tape onto the back of my cut out tag and simply stuck it to the cup.
To give these out as class gifts you could wrap the cups in a circle of tulle that can be purchased in the wedding section of any craft store.