Novel Keyholder Design: Inspired by Swiss Knife

I never liked those leather keyholder pouches which tear, tatter and become shabby over time. But, I had an idea of a swiss knife type of key holder. Wonder if you could just press a button a swoosh your key comes out. Also, it's handy, small and has a better product life than it's counterpart.

Based on this though I created a 3D Solidworks model of the design concept. It would be a spring loaded button actuated that involves a twist so as to push the key out. They key after use can be driven back to it's place with a slight push.

So here are some pics of the design.

Automotive Components

1. Upright Design for an FSAE vehicle. 

 These designs were made by me on Solidworks platform for FSAE competition purposes. A stress analysis for the same is shown in the top-left image. The upright features mounts for brake calliper and toe/tie rod. The analysis was done for Al 7075 alloy.

2. Shock Absorber:

This spring loaded shock absorber is a replication of the motorcycle shock absorber used by my team in the vehicle for the FSAE competition. The design was made for presentation purposes only. Though using spring material and assembly configuration a stress analysis and displacement analysis could be done for the same.