There are 53 "official" Jelly Belly flavors available at present, few of which are MP3 compatible -- strange, really, in an era where pretty much everything else is capable of music playback. The company's new gadget cases are perhaps the next best thing, though despite the fact that they'll add a candy-like scent to your iPhone, iPod touch, nano, or BlackBerry (sadly not this guy), biting into them will almost certainly void your warranty -- and raise your dental co-pay.
The cases are currently available and will run you $15 apiece, the same price as the new Jelly Belly-branded headphones, which are similarly recommended for external use only.