Bomb props examples

I found this on a helpfull website involving ameteur props. it shows various props and how to make them for films. a little insight to how the crews actually create things such as this.
this is similar to the bomb we want to create but me and PG consider it to look a little too ameteur and not correct for our film. although it does give us a little more knowlege on what a bomb may look like and how they can come in all sizes and shapes.