Diecast DIY: Tomica car keys

Courtesy to one of our customers, he has sent in some very cool pictures of how he DIY'd a Tomica into a car key with a keychain.

The same idea can be applied to any kind of keys you have; house keys, keys to the garage, or even just turning your favourite Tomica into a keychain.  Try using a diecast model matched to your pride and joy.

And the same ideas can use on any diecast Hotwheels, Matchbox, etc.  Ideally, something more robust.