Peanut Mousse Jigsaw Puzzle

Don't know what they're called or how to make them, but I'd try this:
Use clear glass ramekin dishes and spray very lightly with non-stick spray.
Make a mixture of very finely ground milk (or dark) chocolate and graham cracker crumbs (or you could use a finely ground cookie of some kind). Put that mixture in the bottom of each ramekin.
Make the mousse (easy to find mousse recipes online) adding very finely ground peanut butter morsels into the mousse. Pour that mixture over the crumb/chocolate mixture.
Make a chocolate cake layer, cut it into circles with an empty ramekin and put a cake round on top of each ramekin.
Wrap each ramekin in clear wrap and refrigerate until mousse firms.
These could be served either in the dish with a chocolate decoration (these can be purchased) set into the chocolate cake layer or, unmold the desserts onto plates and add the chocolate decoration to the small end of the dessert as shown in the picture.

PS: The mousse layer could be different flavors than peanut.

Thanks so much for the time you put into this.

:)

It is called pranut mousse according to C4J - hugs.