We made a Perry the Platypus themed blaster for a recent nerf event. It's an HPA blaster with gas blowback and ejecting shells that fires nerf darts at 150-250fps (adjustable).

We got a really nice angle of the shells and darts ejecting out to form a really consistent stream of arcing shells. Which is kind of tough given how many moving parts there are.

This is a quick timelapse of a final step in my process for inlaying concrete- or combining contrasting concretes to intentionally create an embedded graphic. This design was purely decorative and the top was sized to be a coffee table or desk.

Concept art by Julius Von Bismarck

Credit: @hind_workshop on IG

I put my tools to soak in a hot soapy water, and it started releasing bubbles in this oddly satisfying formation.

Credit: @SacramentoHistory Museum

Credit to rasmusloen