What "stars" would you like to see in a module?

[Shades of Green]

An aboleth. Administer it to a party played by people who've reached the appropriate level with their characters for the first time and who don't know what they are facing. Pure horror. Pure alieness.

 

[Angel Tarragon]

Lizardfolk, Troglodytes & Yuan-Ti.

 

[Herobizkit]

Kytons are awesome. I've seen a few adventures with them included but not the focus. I've used them myself as chief antagonists in a d20 Modern campaign of mine.

I would also like to see more Grippli. Yup, grippli.

 

[MummyKitty]

I also like the idea of a Slaadii module. They were always tough and sneaky. The arctic adventure idea sounds interesting too. Always liked the old Remorhaz....

Another type of creature that I've always had fun with are the woodland fairies like Leprechauns, Pixies, Brownies, etc. Frustrating to play against but fun to DM.