Don't have a picture of it (them) but I tried a piece of sch 40 pvc split and put over the cutting edge, but all it was ride up on the snow as it packed down.
I saw a set of clamp on fork lift bars and got the idea to make a set of "skids bars" for the bucket. 2x2 square tube about a foot long. in the middle cut a "V" in it (only cut three side). Bent and welded it up to form roughly 135 degree bend in the tube. Cut a second about 8-9 inches long to match the angle (should be a 45) and welded it it to the first so it would slide on (over) the bucket edge. Drilled a couple holes the the second, now top piece and welded a nut to each hole to clamp it in place (two clamp bolts each piece).
Whats nice about it is I can still keep the down force on the cutting edge but only leave 2" of snow. But you will have to empty that bucket every so often, it doesn't push it off to the side like a blade does.