I don't believe there's a to-buy mixture of pipe 'bacca made entirely of cigar leaf.
GLP Robusto, so far, is my cigar-leaf-included mixture of choice at the moment, from what I've tried. The others that include it seem to use it more for thickening the flavor rather than adding to it, but with Robusto, you actually get the sense there's some cigar leaf that holds its own when smoked. Provided you're okay with Latakia, it's pretty bold and delicious.