How about this stuff?

It’s like having a mixing printer without the mixing part.


It looks pretty cool. I only ever buy my common use filaments in white, black, and/or grey so colors don’t really lure me in usually but this stuff looks unique enough to have peaked my interest.

I tried sunshines method a while back. I had limited success. Cool it is not commercially avaliable

Interesting idea. I dont think its interesting enough for me to jump on the bandwagon, but i like seeing innovation.

i find the colour changing filament more interesing, but ive had a hit or miss time with it.