According to poster:
"These are not wind tunnel test articles, but full-scale 3D-printed models of experimental flight vehicles. This company's philosophy is to replace wind tunnels and other simulations with actual flight testing. Every one of these machines has actually flown—and nearly every one holds a stack of world records."
We've seen a lot of these shapes in papers and photos of tunnels plus even photos of actual tested missiles/aircraft. The radially symmetrical one is almost identical to the Tsinghua uni rotating detonation engine powered test craft.