Paper piecing is how I started quilting. I don't think Tumbling Blocks is going to work with foundation piecing, however. I think you must mean English Paper Piecing like Grandmother's Flower Garden--where you baste the fabric around a template and whip stitch the pieces together. The paper/plastic/mylar/cardboard template just pops out after you get all the adjoining pieces connected. It's a fun take-along project. As for foundation paper piecing, I've found cheap typing paper but I had trouble finding it so switched to news print. I crease the sewing lines before stitching and I use a smaller than normal stitch length (about a 2.0) I don't have a problem picking out little pieces unless I use copy paper. The flimsier the paper, the less fuss & muss to get it out. I haven't tried the freezer paper method yet but have seen it demonstrated & agree that it would be much easier for some projects like flying geese.
Beverly in Missouri