Resurecting this thread. Finally did something with mine.
Nothing extreme, just making it a bit more comfortable to hold/shoot.
Covered the bottom 3/4 forend rails with some silicon rail covers. Had to shave the edges a bit to get them to fit in tight. Cheap rail covers I ordered from eBay, delivered from India... $7 shipped for 12 pieces, used 6 for the LB, have a few spare for something else whenever I get around to it. This made the forend a whole lot more comfortable in the hand, and it still folds down small enough to fit in the pouch that came with the rifle.
Wrapped the forend, wire stock, and rear receiver in cammo Gorilla tape. Gorilla tape is basically Duct Tape, with an extra thin canvas layer overtop. Waterproof, but easier on the hands than that plastic-y feel of regular duct tape, and even more durable (if it's possible for any substance to be more durable than duct tape). This effectively covers the any metal I'll be holding or have my face against, just feels a lot nicer and reasonably grippy, even when wet.
Looks wise - 100% Bubba. But I don't care. It works. Adds negligible weight and makes it a lot more comfortable to hold and shoot.