In "Shell Game," the sign spells the word "house" in German (Haus).
Brit: Well, Jean Phillipe, you better get some inspiration or we're taking our business elsewhere.
Jean Phillipe: But where do I get this inspiration, my darlings? From the air, the moon, the sun, the sky?
(crystals scatter on clothes)
Brit and Tiff: Oooohhhh! Shiny! Pretty! Glittery!
Tiff: We're gonna rule junior prom!
Brit: That would be okay as far as it goes, but why not take it a bit higher?
Sliver Shell may reference Iron Man & Iron Monger.
The ending of "Dressed to Kill"
The scene where Brit and Tiff's dresses are sealed away and wheeled off into a large warehouse is similar to the ending of Indiana Jones and the Raiders of the Lost Ark. The Ark of the Convenant is sealed and put into a large warehouse, never to be seen again.
Episode Title: Dressed To Kill
The title is taken from the movie Dressed to Kill.