These are colored, by layer, themed ear savers. They are a remix of many sources from Thingverse. They are set up to use the Multi-Material 2S but could be printed by swapping filaments at the layer changes on a single color printer. The Minnie Mouse ones were modified with TinkerCad to add the missing polka dots and can be printed in the classic or modern color scheme. The dragon was modified with MeshMixer.
I added a seasonal version of the Minnie one by replacing Black with Green.
The slicing techniques of
https://www.thingiverse.com/thing:4445955
were used on Minnie Mouse
https://www.thingiverse.com/thing:4439955
and the flowers.
https://www.thingiverse.com/thing:4287485
The dragon was thinned in the Z axis so it is less rigid and more usable.
https://www.thingiverse.com/thing:4303845
The author hasn't provided the model origin yet.