Breaking a Mirror Safely

Breakable Mirror: 

http://www.amazon.co.uk/Acrylic-Mirrored-ACRYLIC-PERSPEX-PLEXIGLAS/dp/B0074A9672/ref=pd_cp_21_1?ie=UTF8&refRID=0HP2Q1XWNJNYQG9JS718

How to break a mirror:

1. 1
   Put on gloves and safety glasses
2. 2
   Place a tarp under the mirror
3                    Score the mirror into sections with a glass cutter  

                                                                            
1. 4
   Place strips of duct tape on top of the score lines
2. 5
   Cover the mirror's entire surface with carpet protector film, which is available at home improvement stores
3. 6
   Tap the mirror lightly with a small hammer along the duct-tape covered score lines until the glass breaks
4. 7
   Remove the carpet protector film and duct tape carefully if you're reusing the mirror pieces

Two ways to break a mirror: With and Without a Safety Backing

https://www.youtube.com/watch?v=9I0Z8u9G5NY