![Leafs by Snoop packaging. Image: Pentagram Leafs by Snoop packaging. Image: Pentagram](/images/LeafsBySnoopPackagingImagePentagramViaTheAtlantic.jpg)
DENVER (AP) -- Snoop Dogg has his own line of marijuana. So does Willie Nelson. Melissa Etheridge has a marijuana-infused wine. As the fast-growing marijuana industry emerges from the black market and starts looking like a mainstream industry, there's a scramble to brand and trademark pot products.