This GoPro Ikea Kitchen Timer Mount is ideal to make cool time lapse videos with your GoPro camera.
I made this video this morning (weather is pretty bad at the moment :/ )
It’s quite cheap (except of the camera 😉 ) and simple to make. You just need a GoPro camera, one cheap (Ikea) kitchen timer, one M5 cap nut, some power glue (for securing the nut) and this 3D print:
You can also find the STL file at thingiverse: https://www.thingiverse.com/thing:96503