I have at one once, but it wasn't really a selection of weed star, like 3 or 4 only, they're available online though.
One of my local shops sells Weed Star slides. And it had a hole in it. Like, where the bowl meets the part that slides into the droptube, so I have to put tape over it or else it messes up the airflow. But yes, some shops unfortunately sell Weed Star products.
atleast the quality has somewhat improved. i have to say my weedstar isnt the best but its 4mm and its taken some drops and hasnt broken somehow