The music being played intermittently in the background throughout the episode is the same as from the movie "Risky Business" which features the crystal egg. Notably the scene where Ryan catches the egg falling through the air in slow motion.
After the Tom Cruise egg is presented to to the girl that bought it Sandy says "The bar is open!" Tom Cruise says this line in "Cocktail."
The glass egg is not the glass egg from Risky Business. It is indeed a glass egg, and The main shape is close, but the original egg is about 3 times smaller.