Advantages and disadvantages of the objects

The stylus pen:
Advantages:
-The stylus pen isn't only used for Ipad but iPhone too.
-It is made from recycled items and can be reused.
-Used by any age group.
- Very easily made but an excellent affect.

Disadvantages:
-The ends may not be sharp.
- There can be a difficulty in squeezing the sponge into the pen.

The 3D glasses:
Advantages:
-They are aimed for any age.
-They can be used on any 3D video.
-Saving money instead of buying one.

Disadvantages:
-They won't fit every body.
-Will have a difficulty colouring every single part on plastic.
-May not work as a professional one.