If making these sundaes a day or two ahead of time, I'd recommend adding only the Oreos, ice cream, and chocolate syrup to your sundae bowls. Then cover each one well with u003ca href=u0022https://amzn.to/2OG9bc4u0022 target=u0022_blanku0022 rel=u0022noreferrer noopener nofollowu0022u003eplastic wrapu003c/au003e and u003ca href=u0022https://amzn.to/38qJF1Au0022 target=u0022_blanku0022 rel=u0022noreferrer noopener nofollowu0022u003ealuminum foilu003c/au003e, and place them in the freezer. When you're ready to serve, you can add the whipped cream and shaved chocolate.