rost495,
One thing that fascinates me about AK-type rifles/carbines is that they keep right on shooting regardless of what they look like.
To be fair, lots of other firearms do that too, including the AR platform.
For the OP - this isn't pretty, but something I whipped up with the Krylon camo paints when I wanted a snakeskin-ish pattern. I use the plastic webbing you find wrapped around rifle barrels or machine tools for packaging, just laid it out flat and did small sections at a time. Easy to re-do or change at any time, and it can all be stripped back to black if desired.
In fact, just for illustration, this lower receiver was painted to match the stock and grip, but I stripped it for another project. You can't tell it was ever painted.