There is a new useful tool for holding your models while building and painting, see all the information here.
This is partial text from the full article (usually with photos) at https://armorama.com/news/sukerumodera-octopus-scale-model-jig
This is partial text from the full article (usually with photos) at https://armorama.com/news/sukerumodera-octopus-scale-model-jig