Mix ingredients and bake cake as directed on box for a 9x13 cake. Cool completely before making pops (preferably overnight).
Crumble cake into a large bowl. Make sure it is a fine crumb. Add the bag of toffee bits and stir. Add frosting to the mixture a little at a time (about 1/4 cup) and mix into cake crumbs. You will use about ¾ of the can. Form into desired sized balls (I use a cookie scoop for this) and place on a wax paper lined cookie sheet. Freeze for 15 minutes and then move tray to refrigerator. (You can make the balls a day ahead and refrigerate, not freeze, overnight.)
Melt your chocolate (I like to start with one bag and add more as needed). If you are making pops, gather your lollipop sticks.
Work in small batches so the balls stay cold. I like to remove 2 or 3 from the refrigerator at a time. Dip your lollipop stick into the melted chocolate (about ½ inch), then stick in a cake ball. Then dip the entire ball into the chocolate. Be sure the chocolate is deep enough for the entire ball. Do not swirl the pop in the chocolate. If needed, use a spoon to finish covering the pop. Remove from chocolate and, holding the pop in one hand, gently tap that wrist with your other hand to remove excess chocolate. Place upright in a styrafoam block. If you are making balls, just dip into the bowl of chocolate, remove and place on a wax-paper lined cookie sheet.
While the pop/ball is still wet, sprinkle with toasted chopped almonds. Refrigerate to set. They can be made ahead and frozen. Serve room temperature.