I recently obtained some foam from Sportsman Warehouse on closeout ($0.59). I've been messing around with different ideas of patterns to use it with. I must say, before this, most of my experience tying with foam was the 2mm craft store variety. This is much thicker and less dense. I think I will break down and buy some more colors in this type of foam.
This is a prototype, but I don't think I will change much. The frog rides hook-side up to avoid the need for a weed-guard. I will be visiting my grandpa in Georgia for his 85th birthday in April. And he has a couple ponds full of lillypads, stumps, and most importantly fish.