to get your mom to get a clue, wallpaper the house in anti-smoking ads and hide them everywhere. Under her bedsheets, put some in a pack of her cigarettes, rolled up like cigarettes. fill up a whole pack of cigarettes with rolled up anti-smoking ads
just be as annoying as humanly possible and when she asks you to stop say "go outside to smoke and I will"
it works, we pulled this bullshit with one of my friends dads. great entertainment, and it worked too!