I printed these two at about 120mm high, Very pleased with the result. I printed using rainbow filament, which is largely pointless unless you are doing large prints. These 2 weigh about 100 grams each so that's 2 colour changes in 20% of the roll, which doesn't seem very much to me. Thanks to the designers for sharing.
Unknown as it was a gift PLA
Each one took just shy of 24 hours to print.