Mystery ID

So I walk out this morning to check on my seedlings, which are growing really nicely! I come upon a lone (what I think is) pepper in a tray. What is it??? I didn't label it! *sigh* What did I do?! I didn't document each and every single one on here, so I am unable to go back to a previous entry to see which one it is. This is pretty sloppy of me! So now I have a NOID pepper. :\ Well...at least I think it is a pepper! I need to find a cheap source of tags. This isn't cutting it!