Another quick study

Pretty obvious what this is I should hope! I bought a bag of mixed nuts at sobeys on Friday and did this painting of a walnut. The bag probably weighed a pound or two and they only charged me 4 cents! I noticed that after the fact.. otherwise, I would have gone and got more! ;)
Walnut Study, 2008 watercolour, 4 x 4 inches, $20 unframed