Place Oreos and melted butter in a food processor and process until you have fine crumbs.
Divide 1/2 cup of the Oreo crust evenly between two Creo Stax Molds. Place molds in the freezer while you work on the cheesecake.
Cheesecake Instructions
Mix cream cheese, ricotta cheese, heavy whipping cream, sugar, and vanilla extract until smooth.
Remove 1 cup of cheesecake batter and food process it with the raspberries until smooth. Set aside.
Remove another 1 cup of cheesecake batter and food process with the blackberries until smooth. Set aside.
Remove 3/4 cup of cheesecake and mix it with 1/4 cup of the remaining Oreo crust. Set aside. There may still be a little cheesecake batter left over at this point and you can go ahead and eat it. There will definitely be leftover Oreo crust and you'll need it in the morning. Don't eat it. Cover it and set it aside.
Remove the Stax Molds from the freezer and place the XO Tool in one of the molds. Alternately fill the outer sections of the Mold with raspberry and blackberry cheesecake.
Fill the center section with Oreo cheesecake.
Carefully remove the XO Tool, rinse, place in the second mold, and fill inner section with Oreo cheesecake and the outer sections with raspberry and blackberry cheesecake in the opposite pattern as the first mold..
Place the molds in the freezer overnight.
In the morning, remove the molds from the freezer and use the remaining Oreo crust to top the molds. (If the crust has clumped up overnight, it may help to microwave it for 10 seconds before using it.) Use the Tamper Tool to lightly tamp the top Oreo crusts, leveling them.
Stack the two molds and click them in place.
Slide out the bottom of the top mold and used the Tamper Tool to push the top cheesecake down onto the bottom one.
Place the stacked molds onto a plate, slide out the bottom sliding tray, and use the Tamper Tool to press the cheesecake down onto the plate.
Unlock the molds and open to reveal the cake. Ta-da!
Top with whipped cream and fresh cherries.
If not eating within the next hour, return to the freezer. Remove from the freezer thirty minutes prior to enjoying.