Definitely. The bubble guns have gotten very popular. And as I said, the CMs are using them as much as the guests (partly to drum up sales of bubble guns probably).
On a totally unrelated note but I just thought of it, even more annoying - and potentially dangerous - than the bubble guns are all of the "lightsabers". Even though they've banned weapons, anything that looks like a weapon, and selfie sticks, they have made no effort (for obvious marketing reasons) to ban toy lightsabers. I can't tell you how many times I nearly or actually got hit by a kid swinging one around in the parks. I saw numerous siblings battling each other, whacking each other with them, and hitting other guests as they waved them around. Funny how Disney has chosen not to ban that particular weapon since they sell a ton of them.