My students do a fundraiser every year for Valentine's Day by making candy roses and selling them. It's actually a pretty easy project: you buy candy-making chocolate (we've had it in milk, dark and white), sticks, and the molds. (As I said, we do roses, but I bet craft stores sell molds in other shapes, like hearts.)
You melt the chocolate in a double boiler (or we actually just use a Pyrex in a pot of water on a hot plate). Pour in mold, insert stick. Put in mold in freezer for a few minutes to set.
Because our kids sell them, we buy packets of "wrapping". But depending on the distribution, you could leave them as is, or you could just use a sandwich bag, colored cellophane, or something else easy to cover the top.
We call them "candy rose grams" and attach a business-card size note to each one. (one-hole punch the card stock and tie it with ribbon)