how to build a "bang in a box"

This is my first instructable, so I am hoping for comments on what is good and what could be better.

The "bang in a box" is a cardboard box which contain a balloon that pops when the box is opened, it is meant to be used as a practical joke or as a fun and interesting way wrap a gift, its very useful for Party Gift-Exchange games or for other situations where you would like to give the receiver a little surprise

 

The "bang in a box" was first built by my older brother when he was in second grade, but was pretty big and clumsy and could be set of by bumps or if turned on the side. Since then I have been developing and improving it to the way it works today. The one build in this instructable was build to contain a blanket, and as as a result of that pretty big however i versions i have build previous, it has been a lot smaller thereby making it more suitable for Party Gift-Exchange games. 

Step 1: Materials

All of the materials are easy to get hold of and very cheep or free.

materials:

      * a few cardboard-boxes
      * a few balloons
      * a few clue-gun sticks
      * a pin 
      * gift(optional)

tools:

      * knife
      * clue-gun
      * ruler
      * pencil

Comments

[Najmyman100]

This is just like jokey smurf's exploding presents

[razortooth72]

very nice.

[anti_dolph]

thank you