Today at work is our Valentines/Friendship party. It'll be a pot luck with some games.
Below is my candy machine we made a while ago at work for art class. I just filled mine with some candy hearts.
These were made from terra cotta planters, glass bowls, and wooden knobs. E6000 Adhesive was used to glue the pieces together, and the painted pots were sprayed with Modge Podge. I decorated mine with a heart, peace symbol and smily face.
Here are some instructions for making the candy holder or gumball machine. (This one requires using two dishes, one under the glass bowl and on top of the pot; we only used one dish for the lid.) The image below is from the link.