Since I don't have acess to my current 3d project and the props I made, heres a older project that I made in 2012.
This project consisted of replacing infamous movie characters on their movie posters with original characters from the video game "Team Fortress 2". Time taken to complete the project: 2 days. All TF2 characters were designed and made by Valve.
These two posters are my favorite, but you can see the project with the other two on my Behance profile.
Luckly enough this project got featured on Kotaku and Behance.