Are you able to select the drive using diskpart? What shows up if you use list partition after selecting the drive? If you are able to select the disk and select a partition within the drive, try using "delete partition override"
Not sure how up to date you are, but 16gb is dirt cheap nowadays. http://www.amazon.com/Kingston-Digital-Traveler-DTIG4-16GBET/dp/B00M2UJDQ8
