i use same method but i use a paper towel roll with dryer sheets stuffed inside and i cover one end with a dryer sheet but i dont use tape i use a rubber band

had to use this recently on a trip to vegas we had a none smoking room but i wasnt having that ... p.s if you find yourself in vegas and need weed bad then ask the ppl handing out the porn cards on the strip they either have it in there back pack or in a near by trash can just walk up and ask they will point you in the right direction lol

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Regard,
Closet-DWC

And remember just try and act NORML