Completely cover the bottom of a 10"x15" cookie sheet with graham crackers; set aside. In a saucepan, heat and stir the candies and cream over low heat, until the candies melt. Spread the mixture over the graham crackers then quickly sprinkle with nuts; press the nuts gently into the chocolate. Cool for 10-15 minutes, then cut into bars or break into chunks like brittle. Serve immediately or store in an airtight container until ready to serve. (And for a warm, soft treat, try heating the bars in the microwave for 5-10 seconds just before eating.. but do Not overcook.)
Microwave Method: Place the candies & cream in a microwavable glass bowl. Microwave on a medium-low power for 2-4 minutes, strring well once per minute. When smooth, spread over the graham crackers and continue as above.