Here are the things you will need:
- Various coloured sewing thread
- a sewing needle
- scissors
- yellow, red & brown markers
- yellow, white & black craft foam
- some cheap white cloth
- some white fiber stuffing
- 3 red pom-poms
- a slide lock
- some nylon webbing
- a large piece of paper
- a measuring tape
- a hot blue gun
- a sewing machine.
Source: http://www.doggiestylish.com/blog/2012/10/how-to-make-a-banana-split-dog-costume-for-halloween/