this is a photo of my keys...
i took it with my phone so please excuse the quality...
i have,
1x house key
2x fuel cap keys
1x ignition key
1x central locking button
1x Kenworth "bug" (the red thing)
1x Volvo Construction Equipment thing...
the bottom two things are from my work where we specialise in Kenworth, Volvo & John Deere.