You've Got Parcels notification

We got fed up with our Amazon deliveries being dropped at the neighbours (and I'm sure they did too) so we got a nice Parcel Box for Amazon to use. Now, it was a lot of effort to go fetch the key to check in the box and see if there were any goodies - especially when met with the ultimate disappointment - no brown box with a smile on it.

So I came up with this pretty basic notification device. When pressed in it hooks on the side of the drawer. When the drawer is opened to deposit goodies, the catch is released and the spring pops the button out.

The parts all print without supports, you'll need a suitable spring and a couple of drops of superglue to fix the button/top onto the core once the spring is inside.