... IMHO, the 100 petalled lotus, or sahasrara padma cakra, is... the brain... within this, is, supposedly, all the elements of the universe... letters, music, concepts -- the intellectual mind...
this would never be a head dress... a head dress, surely, would be something else, something outside a being, not a inner thing... a head dress is an adornment... not something you're born with... a head dress is something you're given, something you earn/deserve; something.... noble...
The crown cakra is not the 1000 petalled lotus, and the 1000 petalled lotus has nothing to do with Devi kundalini. As the name implies, Kundalini is Devi; a goddess. Kundalini is... a force, and energy, the "inner wind/water" that wafts about the nadi, the ida and pingala and susumna, etc... Kundalini is the shakti, the... compliment of the God, (in the microcosm... the psychic energy, as Devi, and you, the body, as God). The head dress would be more akin to... Sri Lalita... or ... the halo of saints?
Kundalini isn't buddhist. It's Hinduism. Tibetan buddhism does have some parallel terms/anologies, but this "energy" isn't from ... "god/goddess"... In buddhism, this energy is self-propelled, rare, and... not really what buddhism, as a theory, is all about...
Ornaments, in buddhist iconography, are often symbolic, and often, those symbols are similiar to those of Hinduism, yet... buddhism does not allow for monks to wear ornaments...