Hah! I like that. As for gliding forms for shoggoths, the shoggoths I've encountered in my stories and imagination are rather agoraphobic -- they get very uncomfortable when out under, as they put it, "the empty sky." Still, there's a whole ecosystem at high altitudes -- cf. "The Shambler from the Stars" and that forgotten but very fine Arthur Conan Doyle story "The Horror of the Heights" -- and those huge, gelatinous, semi-solid creatures deserve a place.