Shadow-Puppet Lava Lamp

This a (mini) mechanical shadow-theatre that recreates a lava lamp, but using only lights and shadows ! The blobs of lights are slowly moving up across the paper screen, appearing, changing shape, merging... It is strangely mesmerizing. I made a short video to explain the design process: https://youtu.be/eRqHICl7BTc I have written some fairly detailled building instructions on Instructables: https://www.instructables.com/id/Shadow-Puppet-Lava-Lamp List of Ingredients You will need a few extra components (affiliate links): an Ikea Jansjö USB Led light: https://www.amazon.com/Ikea-LED-USB-Lamp-Black/dp/B00R8H6VTM/ref=as_li_ss_tl?crid=353IHKNWQBY32&dchild=1&keywords=ikea+jansjo+led&qid=1600956378&refinements=p_85:2470955011&refresh=1&rnid=2470954011&rps=1&sprefix=ikea+jans,aps,212&sr=8-24&linkCode=sl1&tag=mojoptix-20&linkId=bc37b6f61b51987077378156df301fb8&language=en_US a (silent) clock movement, with the minutes hand: https://www.amazon.com/Ikea-LED-USB-Lamp-Black/dp/B00R8H6VTM/ref=as_li_ss_tl?crid=353IHKNWQBY32&dchild=1&keywords=ikea+jansjo+led&qid=1600956378&refinements=p_85:2470955011&refresh=1&rnid=2470954011&rps=1&sprefix=ikea+jans,aps,212&sr=8-24&linkCode=sl1&tag=mojoptix-20&linkId=bc37b6f61b51987077378156df301fb8&language=en_US 2x ball bearings 688-2RS: https://www.amazon.com/Ikea-LED-USB-Lamp-Black/dp/B00R8H6VTM/ref=as_li_ss_tl?crid=353IHKNWQBY32&dchild=1&keywords=ikea+jansjo+led&qid=1600956378&refinements=p_85:2470955011&refresh=1&rnid=2470954011&rps=1&sprefix=ikea+jans,aps,212&sr=8-24&linkCode=sl1&tag=mojoptix-20&linkId=bc37b6f61b51987077378156df301fb8&language=en_US 5x M4 screws, 60mm long 2x M4 screws, 40mm long 2x M4 screws, 30mm long 1x M4 screw, 15mm long 4x M4 nuts 6x M4 wingnuts (can be replaced by regular M4 nuts) 3D printing It should take about 24 hours and 150 grams of filament to 3D print everything.