George Zimmerman -- $100K Offer For My Painting -- I'm A Regular Picasso Now

George Zimmerman has found a new outlet for his emotions ... NOT involving a gun. Now he's brandishing a paintbrush ... and he stands to make a bloody FORTUNE.

Zimmerman is selling a signed painting on eBay ... and get this -- the high bid thus far ... $97,700. So far ... 107 bids and counting.

The painting features a portion of an American flag -- painted in shades of black and white -- with the words, "GOD -- ONE NATION with LIBERTY and JUSTICE FOR ALL." It's signed George Zimmerman.

GZ says it's his very first artistic work, adding, "[it] allows me to reflect, providing a therapeutic outlet and allows me to remain indoors :-)"

Zimmerman could benefit from an art class or two. He says he didn't use oils or acrylics. He used regular old household latex paint. "I know it's not the fanciest, but it is what we had."