Trading artwork for artwork is a gratifying way to do 'business' (in lieu of selling art for cash) these days for those interested in collecting art in other mediums by other artists. Not a new idea. Privately, many an artist has exchanged work with fellow artists in this way since time immemorial.
I recently acquired Irene Gilman's wonderful pot, below, because I had been drawn to her work for sometime. Upon showing her some of my work, she chose the above version of FAT CATS. This title was an allusion to certain bad people operating in Washington DC at the time.
Trading is best done between people who can meet and exchange items in person. It can be art for anything that takes your fancy. It is a good thing to do!