No.

There are actual packages loaded with glitter, all around the Mossgate area. They're set to go off when anything touches them.

If I had to qualify this stunt, it would be either as 'well-meant but disastrous' or simply 'chaotic'.

[Meaning not quite on Mr. Evil's level, but Walter can spell that one out more adeptly once Russell's back inside the Boundary.]

And so, if your sister's feeling like a glitter bath, she's welcome to it.