...some in this part of the country would refer to them as "pig" stickers. Although, the application is geared more for the 2-legged type I think. Hmmm, on the "dagger" issue...personally I would check the interpretation of your local law enforcement. Don't want to go there. I will offer this..your observation of the JW is pretty interesting. Next to some of the models it is pretty formidable.
Joe