Never go to the store hungry they say..... I can attest to that, I always buy a bunch or random things. This is one of them. 
I saw them next to the dragon fruit, and could not stop laughing at the way they look. I usually will buy the exotic fruits when they come in, but have never seen one of these. Wikipedia said they are cultivated mostly in the Southeast Asia area with Thailand being the largest producer. One thing I did find interesting, they only grow them commercially within 12 to 15 degrees of the equator. I just cracked one open, and wow was pleasantly surprised. Inside it was like skinning a grape. It was pretty sweet and tasted good. I definitely will probably buy them again. If you get a chance grab some. I paid 1 usd for 2.
