I received 20 Daemonettes, 10 Seekers and a Daemon Prince for Christmas, to expand my Daemon army, as I am currently working on a Slaanesh army. As I play both Warhammer and Warhammer 40,000, I wanted to be able to use these models in both armies, I have added little "pegs" to the feet of the Daemons and drilled holes in the bases for them to fit into, so I can change between circle and square bases whenever I need to. Here are my points so far (for Warhammer), without the Daemon Prince, 10 Daemonettes, any upgrades/magic items and obviously none of my other Daemon.
Heart-reaper the Deceiver - 1 Herald of Slaanesh with Steed of Slaanesh - 115
Pride-seeker the Slayer - 1 Herald of Slaanesh - 90
The Eternal Dancers - 19 Daemonettes with Alluress, Musician, Standard - 258
The Sin Bringers - 9 Seekers of Slaanesh with Alluress - 228
This comes to 691 Points
For these Daemons, I decided to go for a colour scheme that was easy to replicate but still looked nice and effective. So I kept my original colour scheme and used that for these.