Here are 3 more odds and ends that I’ve found in the last couple of days. Luckily the RSI in my right wrist has finally cleared up and I can spend more time practising and playing computer games and less time surfing.
Potentially space-worthy 3D printed rockets:
https://www.youtube.com/watch?v=kz165f1g8-E
Colour footage of the Japanese bombing raid on Pearl Harbour:
https://www.youtube.com/watch?v=1b6auSQPvGs
5 Seriously Dangerous Toys: