I am not sure that I will be able to do all the prompts in time but I will try to catch up!
I was a bit stumped on this one and finally came up with something abstract.
10 Cubes, 1 material (only principled Bsdf no other nodes), 1 Light.
3 Likes
Time is an illusion, make art whenever!
3 Likes
I am having great fun participating in this challenge and seeing all the incredible entries from everyone. The limitations are a big part of the fun and what make it a challenge.
I will do all even if it takes me a bit longer. 
2 Likes
I love the kaleidoscopic effect you made with this one, haven’t seen that one before!
Coming soon “making of” 
It is really very simple.
1 Like
You hit the nail on the head with the kaleidoscopic, this works in exactly the same way as one of those tubular kaleidoscopics for kids.
“Making Of” (did not warrant a you tube tutorial)
10 really long rotated cubes (you are inside half of them), a point light and a material with specular at 1, roughness 0 + a bit metallic.
Oh …………and those lovely white discs (dots in this case) that reflect off point lamps when you leave “Multiple importance” on!
2 Likes