Closeup Photo Postcard - What is it? - Internation

How about one of those closeup pictures that you try to figure out what it is. Send it as a postcard juist by putting a stamp on the back and give the swapper a hint of what it may be. When it reaches its destination. Then the swapper pm's the sender and tries to guess what it is, then the person who sent it will reply yeah or na y! Send two - one to each partner. If you like photography you should love this as you can take a photo of something closeup, it may be hard to tell or yet someone may know exactly what it is.
Newbies welcomed, I will check status of ratings. Be creative, but by all means nothing obscene.