Well done, she made this weight while still a student.
It is interesting that there were a couple of guesses made on practising artist's and shows that not everything was so made! Student pieces can be very good and should be included when considering ID of more modern items.
Abstract weights of this type are amongst the easiest to make as there is no concern with bubbles or other aspects that require practise and skill.
Alison wrote the article on Paul Ysart for the book Ysart glass and also an earlier one that is now on the Ysart Glass website. She has also published a book on Tupperware: Tupperware: The Promise of Plastic in 1950s America (Smithsonian Institution Press, 1999