This is my GBC MOC using a pump mechanism created by Lasse Deleuran (KZread: MMM GBC). It was my first time creating a themed GBC. I'm a huge Indiana Jones fan. I came up with the idea for this model when I received the skull piece (Rock Skull 4x4x10 Panel Part #47991) in a LEGO lot I purchased. I thought it would make a great GBC with the balls alternating between the eyes. It started off pretty plain but it eventually grew to what you see here. I have plans for improvement using my own pump mechanism and a little more detail. I'll post it when it is complete.