Agreed. If an accomplice in the passenger seat opens the package while they are driving and glitter gets in the drivers eyes, that could end poorly. Maybe instead, nix the glitter and use an oily fart spray that can't easily be cleaned off, but won't potentially blind the person might be safer. Maybe even design it so that when you open it, a cup of really nasty fart oil pours out in 4 directions.

The more I think about this, you could probably make a much safer solution for less than a few dollars if you forego the video capture. Is there a safe non-toxic stinky oil? All you would need is a box that once opened, is very difficult to put back together, that holds stinky oil.

I would probably also put wording on the package that says, "By taking or opening this package, you consent to recording and agree to manage the discharge of a very stinky oil. The opener of the packages assumes all responsibility and liability for any damage that results from touching this package".