Hmm. This frosted cupcake candle ($9.95) looks more like a chocolate peanut butter cup topped with a dollop of whipped cream and sprinkled with candy beads, but if Mellow Candles says it's a chocolate cupcake, then it's a chocolate cupcake.
The company scents most of its candles with "true to name" fragrances, but I don't think the 3.5" tall cupcake smells like anything. That's okay, though, because with a burn time between 30 and 60 hours (quite the range, eh?), the smell of warm chocolate would probably get old anyway.