I thought about the "Great Stuff" foam, Fitz, and even had a can at home ready to go. Unfortunately, that stuff is one use per can, and the nozzle sealed itself shut. I was also concerned about odors and chemical residue, as Coco has stated.
I really was thinking about a more permanent "ProKnowsification" of my Howle nose. I'll have to investigate other foam inserts and then try my hand at Dremeling out a spot for my nose. I'll definitely keep you posted. I'm working this weekend, so I'll try and post a pic of me in my Howle for comparison purposes.
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