Here is an Avon Bath Box
Avon had a Sonic promotion in 1995, as you can see with the bath plush doll above, but this has a shampoo bottle inside, and it's topper was a finger puppet for the bath. The puppets included Sonic, Knuckles & Sally. You can see them here.
Avon, who likes to do quality things had their bottle in a decorative box/outer packaging. The package uses probably some Spinball? art for running Sonic, Archie Comics art for the Sally & rare Sitting Knuckles. (Is he a Japan art?) The star ball is the 'bell bumper' ball from Sonic 3 special stage. The circles in the background are all (oddly enough) full of mathematical fractal sets. This was probably not a blind-box situation (although the box is blind) Avon is an 'orders only' company, so you wouldn't find it on store shelves, only their sales people or catalogs. And, that meant you could choose which shampoo topper character you wanted, or simply buy all 3. The Sally topper ended up being the rarest, because she was the least-recognizable character of the 3 since she was Archie Only & SatAM.