Candles are perfect for birthdays!! These cards feature "candles" - scraps of cardstock and scrapbook papers about an inch wide. I embossed the cardstock to add texture and trimmed the tops to more closely simulate candles. Used heart punchies for the flames - added some colour to make them more dimensional!! Drew in the wicks above the candles with a fine tip Sharpie before I added the flames using 3Dfoam tape. The greeting is printed on vellum which I tore on both sides and added with two brads.
A few ideas for using what you have!!